Well it's all really a hypothetical thing, just kind of nice to think of forcing people to put the shoe on the other foot. I mean I've seen people who have waited tables be very understanding when they go out to eat.
I did that for one summer, almost 30 years ago. It still stays with me the bad customers, and I have never treated anyone when I've gone out to eat, like I was treated by some. Maybe I'm just lucky, or maybe its that fact I'm polite and not demanding, but I can count on one hand the times since then I've had poor service.
As for retail, YES. I really can't stand it when customers have absolutely no consideration for us, or the fact they've come in 5 minutes prior to closing, and the store is perfect, and they proceed to rip it apart. I call it the "octopus effect" its like they have 8 arms, each one grabbing something and making a mess.
But even before my almost 9 year stint in retail, I would always hang things back up, fold them (not realizing many store clipboard fold), or generally put them back as best I could. I never threw anything on the floor or anything like that.