Eurgh, the hygiene thing for me, too. There's a boy who works in my sister's local shop (I'll only go in there if I absolutely have to) who hums. Literally. The filth radiates from him.
His black fleece has flakes of skin and food all over it; his hair is matted and you can see his dandruff from 10 feet away; plus, his finger nails are black.
I can't even describe the smell of him- it makes me wretch just thinking about it. He always manages to touch my blinkin' hand when he passes me my change , too.
Utterly filthy little git.
I also get 'that' feeling when someone stands too close to me in a queue, as well. It doesn't matter if they're clean, LOL!
Sorry to go off on one! :o)