What I wrote on that previous thread hasn't changed:

Generally the answer is a good firm but polite "No". I too have heard my guitars played by stellar players but they're in the minority. If someone is offended and considers me a prick then so be it. I will hand my guitar to a trusted player, but even one of my closest friends is so clumsy I won't trust him with it.

Most often the culprit is alcohol, crowdedness, roudiness, but I don't take any chances outside of my own home.

I'm waiting for a certain pain-in-the-ass to ask to borrow my Telecaster again. Won't he be surprised to find it has no frets above the fifth...that'll stop his wanking in a hurry...he can hardly find the right notes with frets.

A year ago I bought a student guitar (A&L folk cedar, orange, so it's known as The Pumpkin) so that students who are unable to bring their own have a decent guitar for their lesson. It's also the loaner/beater for, "Hey man, gimme your axe, will ya!" moments. Nobody (okay, maybe my luthier friends, and I will admit to letting [here's some name dropping] Tony McManus and Simon Mayor take one for a spin) gets to play my real guitars, but I like the cred I get for having a loaner/beater.

Seriously, there's nothing more horrifying for a working musician to find than some drunk jamming on their axe while they're in the loo between sets. Always carry a spare.

Peace, Mooh.