HaNgMaN

I solved this problem a while a go by having two ages my "stage age" which is the age i always tell new bands when i join them and my real age which they might find out later. I have also come across other muscians who also adopt this practice, for instance i recruited a drummer last year who told me he was 42 (real age 52) and at the time i was thinking "my god hes had a rough life, hes younger than me and looks a lot older, must have done some real substance abuse in his early years". Of course i told him i was in my 30s and it was several weeks later when the band was going well we all admitted our real ages, well apart from the singer he kept saying he was only 35 pfft!

God Save the queen

I'm in 3. Do you tell them that you are also playing in other bands?