something similar happened to me like a week or two ago. I'm back in my old gym, from like four years ago. For a quick history lesson, we joined this gym 18 years ago, my wife still has her original membership active. I've branched off to different gyms as my workout life has changed.
Well, I'm back in this gym and I have a lot of people that I know still, and some new guys that I don't. One guy that I don't know walks around with a hoodie on, good up all the time. He's got a little power but nothing major. He tries, so credit when credit is due. I got on an incline and started pressing. He was doing the same thing. I think he was feeling challenged by me or something because he kept looking at me and was trying to push more and more, almost like his entire workout was now focused solely on spending all his energy on these inclines. All I did was simply warm up with the 50s, then the 70s, and this is where I noticed his attention turning to me. I did maybe 12/15 reps, nothing crazy. The DB only go to 100 so maxing them out comes quickly. I was hitting full sets at 100 and he wasn't able to keep up, he was visibly upset by this. No words, no introduction, nothing. Just an unfriendly stare as I worked out. Fuck em I say. The dude is going to cry when I start bringing in loadable dumbbell handles, cuz we all know 100# db is just a warm up weight