My all time favorite is when some chick asked if she could work in on the lat pulldown and I oblige and she proceeded to do 100 reps with the top plate which was BS because the fucking bar weighed more negating the overall weight. It took five minutes, I lost my pump, got cold and lost my flow. When I got back on and did my next set, she wait thinking I was going to let her on again. I told her no and to come back when I'm finished and she rushed to the gym manager and complained and he came over, I explained the situation and he sided with me and told her to wait. LOL.
Same thing kind of happened to me.
I was on the squat rack, squatting 4 plates ofcourse when this hot brazilian lady comes over and asks how many sets I have left.
I said 2 or 3 more, so she decides to put her gloves and "blouse" and lay them across the pins
And then she asked if I could save the rack for her for when she got back
I said "Look lady, just wait like the other people do, get off my nutsack"
She then, went to the gym manager, who I know mutually, and of course he sided with me LOL