Seriously, with friends such things don't matter to me either. But there are friends, and there are habitual bums, and I've noticed (among other things) those bums tend to be what I call "scorekeepers". Next time you see one of them smoking just try bumming a smoke off of him... it's like you're asking for his first-born child. (Okay, I know you folks aren't gonna bum a CIGARETTE, but you get my point. Habitual bums are often like that. they are not your 'friends'.)
Vape on!