I hate cocky shopkeeps, with their "Smile! You're on Camera!" signs. I'm not going to steal your shit, you cocky shopkeep. You probably don't even have a camera, asshole. You just think you're smarter than your customers.
"I know. I'll put this sign up, and everyone will THINK I have hidden cameras looking for shoplifters. This idea will keep theft down, AND save me from buying an expensive camera system."
What an asshole shopkeeper. Those signs make me want to steal from your shop, shopkeep. Smile! :) I'm about to rob your place. You cocky shopkeep, you.