Some people are rude and inconsiderate, and just into themselves. If you call them on it, they'll have no idea what you're talking about, and they'll make you the bad guy for it somehow. Last night, I was driving back to Los Angeles from Phoenix, and stopped for fuel in the desert. There were plenty of gas pumps available, but only two Diesel pumps. BOTH were occupied by A**HOLES. One was a van with a trailer, where they got a couple gallons of Diesel, then decided to unload and reload the van in the gas station. The other pump had an Audi convertible (GAS powered) parked and unattended. I sat politely idling behind the Audi for at least 15 minutes, and finally my Irish part got annoyed and I went in and asked to have the owner paged (still politely). Then about 5 minutes later, a little mideastern-looking punk (about 18) comes slowly waddling out with his iPhone stuck on his ear, and he just looked at me (no apology, nothing). I gave him a Redneck stare as he drove away, and I got my fuel.
It's people like that who will sit on a machine or the bench at the gym, and not have any idea that there's another breathing human being on the entire planet, let alone who might be waiting to use the bench.
Charles