Gotta agree with the hair obsessed dude on this one, shit that drives me utterly BUGSHIT:
Pocket change jinglers
Sniffers/snorters
Whistling noses (OMG FUCKING BLOW ALREADY!!!)
Gum
People who put ANYTHING that is NOT food in their mouth and actually chew it, e.g., toothpicks, pencils, pens, etc.
HEARING someone's lozenger/cough drop click against their teeth
People who talk with food in their mouth/hearing people eat in general
Yeah, some of that shit I'm hypersensitive to because of my job. There is NOTHING grosser than listening, in stereo, to someone give dictation and they have food in their mouth ... they belch into the mic ... or you can hear they're talking around a lozenger. I can excuse the lozenger, but the belching?

Some shit there is just no excuse for! That's just frigging rudeness!
I used to work for a guy that was habitually under a deadline (mainly because he couldn't organize himself) he'd need something done in a hurry, he's all in a shit and a sweat, that fucker used to stand behind me while I was typing and jingle his pocket change

I had to remind him that he wasn't making me work FASTER by distracting the shit out of me.
No wonder I work at home, alone.