I owned a computer repair business for a few years. A woman brings in a laptop slammed with viruses, spyware, etc. It was so bad it wouldn’t boot. I got it all fixed up, and she picked it up.
She’s back the very next day with the same issues.
Me: “I feel I need to ask, what websites are you visiting on this thing?”
Customer: “Oh, hmm, lemme see. My boyfriend spends most of our internet time on…”
She proceeds to list, totally casually, a long list of adult-oriented websites with names that would make most people blush.
Me: “Um, okay. I’ll go ahead and clean it again for free, but if you visit those sites, I can’t do it again without charging. Those sites are 100% the cause of all your computer issues.”
Customer: *All smiles.* “Okay!”
She picked it up the same day, and is back in the next.
Me: “Did you go back on those sites?”
Customer: *Laughs.* “Of course.”
Me: “Do you understand why this keeps happening?”
Customer: “Yup!”
Me: “And you go to those sites anyway?”
Customer: “Yup!”
Me: “I’m going to charge you every time you come in with the same issue.”
Customer: “S’all good!”
Those two and their choice of websites paid my rent for months…