A teenager is sitting on a bench at a playground, swearing loudly, "Fuck me, why the hell did I do that?"
Suddenly, a mom runs up to him and says, "Hey, there are little kids around! Why are you cursing like that?"
"Take a seat next to me, ma'am, let's talk about it," he replies.
She sits down next to him, and the teenager say, "You know, this bench is freshly painted..."
The mom looks down: "Fuck me, why the hell did I do that?"