I go out of my way to throw on gym clothes with a goal in mind to accomplish a few exercises and guys are just occupying equipment, it's really frustrating.
I wish I had the time to wait for "sits and stairs at the floor for five minutes" guy but I don't. I get in, do 10 minutes of cardio, weight training for 30 minutes and I'm out.
No different than golfers who ignorantly take their time on a hole as if they are prepping for the tour, or the car ahead of you in the drive thru who's taking their time selecting whether they want a hamburger or a cheeseburger holding everyone else up.
Too many people only exist in their own world, completely inconsiderate of others around them.