Is it bad that I find joy in telling overly confident students that they are doing the problem wrong when they can't find there answer in the bank?
Now I am not mean about it. I try to tell them that they have only done half the problem or that they are missing a piece of information, or are they SURE that that's the height of the prism. But when they start to argue, I get a little defensive. I make mistakes...sure, and I admit them. But I have a few students that just never want to admit they are wrong.