I'd like to throw in interruptions by people who are completely sober but have something they want to sell. Going to get your coffee and having someone say "hey, let's have a chat really quick" then reply "wow, ignore me like I didn't just talk to you" when you ignore them is irritating as hell. In the pre-covid days people in my office would go to the Starbucks that was a half block further away just to avoid those people. Note: if a homeless person was this aggressive, the police would definitely get involved.
Also while calling it aggression is a bit of a stretch, I noticed the block that surrounds a couple of the busiest transit stations are noticeably less polite. Things like smaller personal space, more tolerance for cutting people off, less "excuse me" or "pardon me". It makes sense in the context, but if you are passing by it could be a hassle that you'll put a bit of effort into avoiding.