Oh come on now, why so shocked? We all do it and usually I do it privately, discretely as to not offend anyone. The bathroom is a good place for not much can go wrong in there.
That is unless your naked and sitting on a bowl of water with dangling strands of Christmas lights around your neck....
Yeah, I know - each and everyone of you really needed to see that. I couldn't help myself but to share, it's so... um... so enlightening and full of Christmas spirit.
That must be one well ventilated recording studio.
Flyinfox_SATX