What turns you off the quickest?

[Zet]

Someone was doing this to me the other day, it did not put me in the best of moods, took alot of friends and that to get me out of my mood because of one person, ive always said, it only takes one person to ruin it for me, in this case ruined my day.

Normally I'm pretty patient my self, but it gets me very pissed to, as an example sometimes when I speak I tend to stammer (When I'm nervous, don't feel comfortable or I'm not liking the subject) and I really hate it when people comment on that since I'm not doing it intentionally and I find it somewhat embarasing. My father always tries to correct me, although I know he is only meaning well, but it can ruin my mood pretty easily to hehe