Alright had some crazy ones this weekend.
A family comes in (Dad, mom, and two small kids, boy and girl, probably 10ish). They're walking by the movies and the girl says, "let's buy Lady in the Water!", to which the dad YELLS something like, "That movie's crap!". And I mean he yelled at the little girl. At this point I knew these people would be tons of fun
So they are looking some more, and then approach me at the counter. The woman asks if we have The Haunting, and I tell her yes we do, it's in horror. As I'm walking over to show them, the dad starts yelling at me, "Hey! Hey! Wait!", so I turn around and he says, "Uh, hey, do you have any good war movies? Like World War II?" I was like, "WTF? This can't wait a few seconds?" So I grab the Haunting and Flags of our Fathers and go back to ring them up.
I then make the mistake of trying to sell something to them. I begin to pitch rewards since they had the older movie, which would be free, so they would get the package for just $6 more instead of $10, which isn't too bad (as a side note, I've had people decline this package when it was only $2 more, or even when it would be cheaper to get the package.

) So I explain to the woman how it works, and she doesn't get it, but for some reason is really excited to hear it again. So I explain it again, and she tells her husband to listen to it a third time. I go again. Each time I try to simplify it and say it differently, but these people are just too gone. Halfway through the dad says, "I don't want anymore movies", which I thought would stop this insanity (although technically I wasn't trying to get him to rent anything else); the woman then says, "no, listen to him!" and I have to try AGAIN. I don't think I've ever had anyone ask me to try to sell them something more than once. Finally, the guy says he doesn't have $6 and that's the end.
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Also had some 25ish kid get in an argument with me. Brings up a stack of previewed dvd's, but they are just 4 different ones, but about 5 or 6 of each. I could tell immediately what he had planned: a 4 for $20, but he wanted make sure he got good discs. This is fine, except the way he went about it was all wrong. Don't ever bring someone a ton of extra work. I know it seems silly, but I would rather someone brought me a few discs and asked me to check them. If they are not in good shape, I go grab a few more.
I started to check the discs and the guy wanted to do it himself. Now I had a weird feeling about the guy; he seemed shady, brought up tons of discs and wanted to look at them. When this stuff happens, it can seem like someone is trying to confuse or distract me, and make off with a stolen disc. I told him I could check out the discs and let him look at them, but I wasn't about to just let him handle all the discs. He got super pissed and started saying I had some sort of mental issue (wtf?); I finally just asked my manager what he thought and he said although it's against policy, we could let him do it this once.
In retrospect, I handled this all wrong; in fact I think I was about to just hand him each disc anyway when he demanded I let him hold them, which set off alarms 'cause it just seemed off. I really wish I hadn't been so stubborn though. About ten seconds in I should have either let him just do whatever he wanted, or gotten the manager. The guy really pissed me off and acted like a complete ass. I was having a good day too.