I work in the local "art house cinema" in a section of town where mostly seniors live. Let me tell you... these have to be the worst people to serve.
They can't remember what the hell they're seeing, and refer to the movies by who is in it. This is hard for most of us employees, seeing as most films are indie or foreign and have people we've never heard of, even if we have seen the movie. I don't wait through credits, I shouldn't have to. You should know what the frick you're about to see.
Another aproach they take at box office is asking what every single movie is about, and then asking whether I've seen it or not. This is very inconvenient during rushes, when these knobs decide to use this tactic. It's Friday night and you're busy... so I should ask about EVERY film!
Another pet peeve of mine is when they get tickets. Even if they are obviously old as dirt, I'm not allowed to assume they are senior. But will they say "two seniors to Argo"? No. They just say two to Argo. And when I say, "okay, two matinee is sixteen dollars," do they stop me? No. It isn't until after I print tickets that they ask if I charged them senior. No. I said TWO MATINEE because I charged you for two matinee. Which leads to "well, you should have known" and my head explodes because it is supposed to be a fricken compliment, and you old ladies are supposed to adore me for it, not yell at me about the seventy-five cents you are entitled to save because you're my grandma's age.
Lastly, late customers. I "love" these guys. They show up twenty minutes late, and ask how far in the movie is, and how crowded it is. I don't know how far in it is. Even if I have seen that particular movie, I don't time how long previews are, and how long it takes for any important details to pop up. And if it's crowded, how do I know if only the front row has seats? I don't pop in every two minutes to see how full it is. I'm helping customers get to the other movies they were on time for. If you want to have a good seat and see the movie in it's entirity, show up early like everyone else.
And yes, movie times change every Friday, if not sooner. Check online, call, or read the newspaper to make sure your movie is still playing at a convenient time for you.