While I was sitting down, I saw something that drove me crazy. Somebody’d written “Fuck you” on the wall. It drove me damn near crazy. I thought how Phoebe and all the other little kids would see it, and how they’d wonder what the hell it meant, and then finally some dirty kid would tell them – all cockeyed, naturally – what it meant, and how they’d all think about it and maybe even worry about it for a couple of days. I kept wanting to kill whoever’d written it. I figured it was some perverty bum that’d sneaked in the school late at night to take a leak or something and then wrote it on the wall. I kept picturing myself catching him at it, and how I’d smash his head on the stone steps till he was good and goddam dead and bloody. But I knew, too, I wouldn’t have the guts to do it. I knew that. That made me even more depressed.
– J. D. Salinger