Twinkish douchebag at my gym was working legs and he was supersetting on 4 machines at the same time. all leg machines...
He would rush to do a quick set, then practically run to the other machine to hold it. Some gym bunny was walking to used the calf raise machine and he power walked his ass over there to get there first. She got mad and walked off having a hissy fit. Then, when he was doing a set of leg presses, some dude started using the only available leg extension machine, which was the one he was supersetting on. Twinkish douchebag didn't asked to work in or tell dude anything. He just walking over there, stood 5 feet away, get mad, make angry faces, and walked away all pissed like someone hit his car or something.
People are funny.