Which dirty habit you dislike very much in people?

i really hate when people pick their nose in public.

I actually feel very uncomfortable about girls burping out loud~! I don't find it attractive at all! I have a friend who burps in public as if she's at her own house. I don't have a problem if guys do it because guys are guys! But if it's a girl, I just find it very uncomfortable. I just keep quiet if she does it, but I quietly disapprove..

i really hate it when people spit on the streets or generally in public. i find it disgusting... and really unhygienic.

Any evidence of unseemly bodily functions (ie, passing gas, belching, spitting, sneezing loudly with an uncovered mouth, or talking about said functions). But I'm Peacockish in that way.

people who pick their noses especially when they are driving.

keep on complaining,backbiting and the worst one is using offensive slangs for each other which i hate the most because i think the external injuries can be cured but not enternal ones so everyone should think this way to avoid hurting people in the names of there mothers,sisters,fathers and other loved ones to create harmony peace and tolerence ........... Slangs should be banned by everyone on his own to prevail respectful society and culture .........