I was just having a quiet pint by myself in a half-empty pub when some guy comes over.
“Would you mind moving, that’s my seat.”

Seeing as though I’d been there an hour, and there was plenty of other empty seats, I politely refused.

He started getting quite aggressive at that point, saying “I’ve never seen you in here before, I’ve sat in that seat every Saturday night for the past ten years, so move it”.

Still refusing, the guy walked right up to me, passed me two sticks, and said, “Well you play the fucking drums then.”