The most memorable involved me going to the toilet at the Forum Theatre, and while sitting there and doing my thing, looking up and noticing that someone was leaning over the top of the cubicle, watching me.
"Get lost, you PERVE!" I shouted at them.
They got spooked and dashed out of the bathroom. I chased after them, past that long queue of people waiting you often see waiting for the loos at the Forum, shouting "Stop that Perve! I caught them perving and they're not going to get away with it!"