We had a guy last night, local player, a pro I thought,... ask to sit in. He'd never been in on one of our gigs and I was surprised and a little taken back. Pros don't ask to sit in, that's amateur territory. If there's someone we want to sit in, we'll ask and it's generally reserved for folks who we know and those who come by to listen to the band. But I didn't want to make a big deal out of it, he offered to bring his amp and guitar in, I said No. But I told him, if he wants he can play my guitar on a couple tunes, no problem, I asked him up, he did and sounded fine. After the set I told him we don't make a practice of having guys who've never been at one of our gigs to play w/ us, but we liked him and went ahead and did it. I guess I'm having a hard time w/ the mindset. I know if I go out to hear a band, I'm there to listen. Seldom will I sit in when asked, it's their gig. I don't need to hear myself with them, I know how I sound.