Talking on the phone while on the loo

Would you/could you/well you wouldn't really would you?
At home (maybe...)/at work (I don't think so)?
Flush or wait for the call to end first?

Its not nice really is it. Somehow worse at work. I went into the toilet today and someone was having a conversation on the phone in there. It puts me off being in there at the same time as someone anyway but when you think someone on the phone may be hearing you...