Avoiding profanity is one of the hottest things a man can do

Not quite THE hottest, but easily in the top ten. The amount of self-control and moral fortitude that it displays is just absolutely maddeningly swoonworthy. When I notice an absence of swear words in a man's vocabulary I almost always become insanely attracted to him.

Swearing on its own isn't an automatic deal breaker for me but doing it in excess is definitely a turn off.