Gym annoyances

I've been going to the gym regularly since October, (Although you can't tell by the size of my ass...) and there are people that seriously and continuously perplex and annoy me.

Here's an example.
There is this couple, she is probably in her mid fifties, and he a little older. She is in great shape for any age, and always wears the same, once black, now faded to gray, 3/4 work out top, and pants, which shows about 2 inches of her flat belly. That's great, if you've got it, flaunt it. But, I want to tell her to dispose of her pants, as they sit 2 inches above her belly button, and make her ass look two feet long. She completely over-ages herself in the outfit, but that's not the annoying part...
I remember seeing them years ago when I was a member, and they are still doing the exact same thing...
They will make a big production about doing cardio, (being beside each other, towels, water, etc.) then they ride the bike for 5 minutes. They do one set of weights, of maybe 8 repetitions, switching off, then they move to another machine, a completely different body part mind you, and do one set of about 8 reps. They go to the ab mats, and do no more than 10 sit-ups. When done, she actually said, 'I'm so glad I'm done with abs!" WTF? They both do their entire work out in about 20 minutes, with no effort, rhyme or reason... Watching them is like watching butterflies flit and flutter throughout the gym.

There are so many other people I could rant about, but why? I feel better already!