I figure it's been awhile since I've seen one of these threads, and they usually always crack me up to the point that I'm laughing, and crying at the same time. I've only had a couple so far.
1) The two absolute biggest guys at my gym were benching, and for some reason, they abandoned the bench for a good few minutes. Anyway, this guy was looking for a five, and wow, there it is, on the end of this bar that NO ONE is using for at least three minutes. So I snag it for him, give it to him, and continue to quasi spot him. Well, the big dudes get back, and one of the guys gets under the bench and starts repping. Looking back, he was probably doing about 300 lbs., maybe a tad more, a tad less, either way, it looked like a lot (By the way, these guys ONLY bench, I have never seen them do ANYTHING else). So this guy gets done, and proceeds to interrogate everyone within ten yards of him, as to "WHO TOOK MY 5 LB. PLATE FROM ONE SIDE OF THIS ****! IT WAS UNBALENCED! I WANT TO KNOW WHO DID IT!" So finally, he came up to me, really pissed off, "Did you take my 5lb. plate off the side of the bar?" I just nodded my head no, shrugged, and pointed at some dumbass in the power rack doing curls and said, "I think that guy might have done it, he was looking for weights, and he's got a couple of fives on his bar." I don't know what happened after that, but I sure know I was scared shitless.