Hi, this is my first post so excuse me if it goes wrong...
Agreed absolutely. I used to be a frequent stage-doorer and I think that most dancers are fine with that and have probably done some stage-dooring themselves, but if I see dancers in coffee shops, supermarkets etc., they are not at work, although as carbro said, if they see me, I smile just as I would if I made eye contact with anyone else I recognised. Having said that, fame can make people react in funny ways, as Ami said: a group of dancers once started to approach me while I was reading on a bench near the theatre in which they performing (I was volunteering for the company that day so was wearing their t-shirt!) and I leapt up and practically ran away!