I don't have a huge social life, so do not often tell it.
oh yes, and because i try to minimize the shock, i usually tell people i am a "math teacher".
this does not impress too many of them, since i do not use the "professor" title, unless pressed.in fact when i started posting here, i declined to say i was a math professor for a long time, until quizzed about it.
up until then lots of people argued with me over my statements about math, and it bugged me that afterwards my opinions on math
received more weight than they had before.
i.e. i started out believing that anonymous correct answers to math questions would impress people just by being correct,
but eventually found that more people think i must know something about math because i am a professor,
than think i am a professor because i know something.