If you see a random stranger (in the street etc) whom you find particularly attractive, what is the ONE THING that would put you off them?
I am not looking for a debate or chit chat, just interested to know that ONE THING that turns you off, whether visual, audible, physical or otherwise. Please don't say 'a wedding ring' or 'I am already with someone' or 'baby bump' or something equally inane. I am just wishing to hear of that ONE THING when you see someone attractive, suddenly makes you go� 'ooh no', preferably (but not essentially) from actual encounters you have had.