Some context: the locker room of my local gym has benches that are wide enough for two people to sit and change. Each half of the bench faces 5 lockers (first come first serve, unassigned). People usually take up one half of the bench, leaving the other half clear for someone else.
After working out, if I return to the locker room and someone is using the half of the bench in front of my locker, I take out my stuff and use the other half, if empty, or the bench immediately behind. This happens frequently as there are about 5 lockers per bench half. If someone is using an entire bench (unusual, as people tend to be more considerate), I may ask them to clear half or I may just move my things to a separate bench.
Today, I was changing after showering, with my stuff on the bench in front of the locker I had been using (and which was empty by now). A guy shows up and points at the padlocked locker at the end of the row (also in front of the same half of the bench). I assume he’s asking for room to reach his locker, so I step aside and let him pass. But then he opens his locker and just stands there, staring at me. He tells me he’s waiting for me to move. He says that he’s entitled to use that half of the bench, because that’s where his locker is, and that I’m supposed to grab my stuff (gym bag, coat, sweaty gym clothes) and move them to the other half of the bench. I try to explain to him that I’m just using the bench in front of my (now empty) locker and that I’ll go when I finish getting dressed. I tell him that when I got there there was no one (just his padlocked locker) and that I’m not the one who’s supposed to move to accomodate him. Mind you, the rest of the bench was empty and so was the bench right behind us. He had plenty of room to put his stuff there, but he kept berating me quite aggressively saying that I was supposed to move. So AITA?
EDIT: For reference, I’ve never asked anyone to move to another bench because they were blocking my locker and, in all my years at that gym, I’ve never seen anybody make that demand, of me or anyone else.