Quick question. Our drummer has a bass player friend who would like to sit in with us for a few songs. He calls me and asks, "is that ok". My first inclination is to be insanley protective of my turf, but that makes me look like a schmuck. Interestingly enough, this has never happened to me as long as I've been playing. A small part of it is I don't want to be shown-up or anything like that. But most importantly is I feel the band is ours and it's my turf. OTOH, it's cool to exchange ideas and learn from others.... conflicted. I agreed to it AND with no real static. I just thought I'd get some opinions.