Add one to my [long] list of pet peeves:
I cannot stand it when people clip their nails at work.
I’ll accept it if you have to fix a hangnail or something, but if you feel the need to deal with your nails at your desk, step back and take a long toke off the reality reefer: No one wants to hear your stupid nails being clipped, nor do they want to step in/sit in/touch the clippings that are no doubt flying all over your cubicle.
We have restrooms for personal grooming. Better still, try dealing with things like that at home. That clip-clip-clip sound coming over the wall is worse than scraping on a chalkboard. Do something about it.