Fingernails on chalkboards do it to me (shivers up the spine). We have a student who snorts and coughs up whatever he can, holds it in his mouth in a way that you know he has something there, and THEN asks to go outside to spit (makes me want to vomit every time). Nothing worse than helping to clean up someone else's vomit (after working in an eating disorders unit of a psych hospital for a time, and now a teacher, I've had to do it a lot, but at least I don't get bothered by SEEING someone else's vomit anymore).
A voice on the phone that tells me I have to press "1" for English.
Yeah, I don't like that either, but just wait until we are no longer #1 (I can just imagine, "please press 1 for Spanish, 2 for
pick common language for your area and insert here, press 3 for English, press..."). That is when we have really lost.