I'm not going to piss in the fucking sink!

A few years ago Dave Mustaine was doing a signing at our record store. When he asked to use the washroom, our manager showed him to it and mentioned that the taps were a bit tight so he'd have to turn them pretty hard. Mustaine replied "I'm not going to piss in the fucking sink!" No one was really sure why he'd have to clarify that. I guess Dave Mustaine just doesn't wash his hands.