I got put off playing live for about a year after I had a particularly nasty incident. Bearing in mind I've got Aspergers, read on.
Drunk moron comes up to me and the other guitarist and begins to talk to the both of us. "Mate, thhatttss some great playing like. Really rocking it" he says in a drunken slur to the guitarist. He turns to me randomly and says "You look like a f***** spacker. Who lets a retard like you out?"
In hindsight, it was a bit silly but that was ridiculous.