And when I am in the canteen... chair-scrapers. People who press the chair legs hard against the floor while dragging them to deliberately produce a louder noise than the room's accoustics is designed for. CHAIR-SCRAPERS ARE BOTH GENDERS!
I'm a chair-scraper ********! I only do it on purpose when my colleagues are talking and I'll come sit down in the canteen and interrupt their conversation
But yes, corridor-hoggers, and those morons who walk double file in a narrow corridor just because they're talking to the next person, also pee me off. I've found just stopping where I am and looking at my phone causes them to get back in line although they sometimes do brush me!