Sure it'll make money
The girl in the sandwich shop in my building asked me what I thought of her entrepreneurial idea today. She and another girl are going to set up a rat catching business, dangling themselves as bait and testing boyfriends to see if they'll cheat. I told her I had no doubt but that she'd have customers, but I'd never be one of them. If you're dating someone and you don't trust them, I think you should break up with them, not set them up.