5 AI Prompts That Catch People Trying To Rip You Off
Contractors, mechanics, subscription traps, “free trials,” sneaky estimates. The same scams have worked for decades. AI ends them in 60 seconds.
By the time you’re over 50, you’ve been quietly ripped off enough times to know the feeling. The contractor estimate that came in 60% higher than expected. The mechanic who found three new problems on a routine oil change. The “free trial” that’s been quietly charging you $14.99/month for two years.
You can’t fight all of it. You’re busy. They count on that.
AI doesn’t get busy. It doesn’t get embarrassed asking for the itemized version. It doesn’t miss line items at 11 PM after a long day.
These five prompts turn AI into the pre-purchase advocate you can’t afford to hire — the second opinion that costs nothing, takes 60 seconds, and works on every kind of ripoff older adults are targeted with.
A note before you start: these prompts work on any AI — free Gemini, free ChatGPT, free Claude. None require credit cards or accounts beyond a free Google login. If you’ve never copy-pasted into AI, the how-to box at the bottom walks you through it.
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Is This Contractor Quote Honest Or Are They Padding It?
Contractors quote what they think you’ll pay. This prompt makes AI play a second contractor with no financial interest, line-by-line your quote, and flag every padded number.
You are a building contractor with 30 years of experience and no financial interest in this job. I have a quote in front of me. Stress-test it for me line by line. The project: - What's being done: [DESCRIBE — roof, kitchen reno, bath, addition, etc.] - House details: [AGE OF HOME, REGION/STATE, SQUARE FOOTAGE IF RELEVANT] - Quote total: $[AMOUNT] - Quote line items (paste them in, even if rough): [PASTE] - Timeline they promised: [DURATION] - Materials they specified: [BRAND/QUALITY if mentioned] - Payment terms they're asking for: [UP FRONT %, MILESTONES, FINAL] Give me: 1. Which line items look 20-50% above market for my region — be specific 2. Which line items are MISSING and would inevitably appear as "change orders" mid-project 3. The 3 questions to ask this contractor that will tell me in 30 seconds whether they're competent or hoping I don't ask 4. The payment terms that would protect me vs the ones in this quote (red flag: more than 10-30% up front for residential work in most states) 5. The specific clauses I need added to the contract before I sign (warranty, lien release, materials grade, change order process) 6. A second-opinion script — exactly what I say when I call a second contractor for comparison Be honest. I'd rather pay you nothing for the truth than pay them $40,000 for the polite version.
The same AI then writes the email you send to two more contractors to get apples-to-apples comparison quotes, drafts the contract clauses your lawyer would charge $500 to draft, and prepares the polite-but-firm script for the conversation where you push back on the original quote. Most contractors expect a polite homeowner who signs the first quote. Knowing what to ask completely shifts the dynamic — sometimes they sharpen their pencil before you even ask for a discount.
The Mechanic Just Found Three New Problems. Are They Real?
You came in for an oil change. You’re leaving with a $2,400 quote for things you’ve never heard of. This prompt makes AI play a senior mechanic who explains, in plain English, which of those “urgent” issues actually are.
You are a master mechanic with 30 years of experience. I went in for [REASON FOR VISIT] and was quoted additional repairs. Tell me which ones are real, which are optional, and which are the shop's revenue stream. The car: - Make, model, year, mileage: [DETAILS] - What I came in for: [E.G. "oil change," "tire rotation," "check engine light"] - The additional repairs they're recommending: [LIST WITH PRICES] - Anything they said felt urgent or scary: [DESCRIBE] - My driving pattern: [E.G. "30 min commute, mostly highway" or "city short trips, 5,000 mi/year"] - Symptoms I've actually noticed: [LIST or "none"] For each recommended repair, classify: - URGENT (safety / will cause major damage if delayed): explain why - SOON (next 5,000-10,000 miles): explain the actual timeline - ROUTINE / OPTIONAL (manufacturer maintenance schedule item): give me the schedule - LIKELY UNNECESSARY for my driving pattern and mileage: explain why Then tell me: 1. The 3 questions to ask this shop that will expose whether they're padding the list 2. What a fair price for each "real" item should be in my region (rough range) 3. Whether I should get a second opinion at a different shop, and if so, what kind (dealer, independent, specialist) 4. How to spot a "trustworthy mechanic" if I need to find a new one Be straight. The shop has every incentive to upsell. You don't.
The same AI can decode any mechanic's invoice term you've never heard of (“serpentine belt tensioner” / “valve cover gasket”), explain the manufacturer maintenance schedule for your exact car, and prep the script for asking the shop manager to honor the original estimate when the bill comes back $400 higher. The shop relies on you not understanding the words. That ended two minutes ago.
The Subscription Audit — Find The $2,400/Year You’re Bleeding.
Streaming, software, “free trials” that auto-renewed, gym memberships you stopped using, magazine subscriptions you forgot existed. The average over-50 household leaks $1,200-3,000/year. This prompt finds it.
You are a personal financial coach who specializes in subscription audits. Help me find every recurring charge bleeding out of my accounts, categorize them, and decide what to cut. My situation: - Pull from: my checking/credit card statements for the last 90 days (I'll paste relevant lines below) - Statement lines, even messy ones: [PASTE — bank export, screenshot text, anything] - If I don't have statements handy, I'll list what I remember: [LIST] - My financial goal: [E.G. "find $200/month to redirect to retirement"] For every recurring charge you can identify: 1. Categorize it: STREAMING / SOFTWARE / GYM / NEWS-MEDIA / PHONE-INTERNET / INSURANCE / DONATION / OTHER 2. Estimate annual cost (multiply monthly × 12) 3. Likelihood I'm still actively using it (HIGH/MEDIUM/LOW based on what I described) 4. Whether a free alternative or cheaper tier exists Then give me: 1. A ranked KEEP / CUT / NEGOTIATE list 2. For each CUT, the exact cancellation phone number or website + the script for the call (some make it deliberately hard to cancel) 3. For each NEGOTIATE, the specific phrase that triggers a retention discount (these exist for cable, phone, internet, gym, software — every major industry has them) 4. The 3 sneakiest "auto-renewal" patterns I should check my next statement for Total it up. Tell me what cutting/negotiating could realistically save me per year. Be specific. I want a list I can act on in one afternoon.
Re-run the same prompt every six months. The same AI can also draft the cancellation emails (some services require written notice), file Better Business Bureau complaints when a company refuses to cancel, and dispute auto-renewed charges your credit card company can claw back under fair-billing rules. Most subscription bleeds aren’t laziness — they’re engineered confusion. AI cuts through it.
How to actually use these
If you’ve never copy-pasted into AI before, here’s the workflow:
- Open gemini.google.com (sign in with your Google account — free, no credit card)
- Click the Copy button on any prompt above
- Paste it into Gemini’s text box
- Replace the parts in
[BRACKETS]with your real information - Hit enter. Read the answer. Reply with follow-ups — this is a conversation, not a one-shot.
Prefer ChatGPT or Claude? They work identically. chatgpt.com or claude.ai. Both free.
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