Apologies if this is a repost or duplicate thread, but I didn't get a recent hit for Doonesbury nor see a recent relevant thread. By coincidence after just holding our K-12 district science fair, for which I am one of the organisers and we struggled with just how many ribbons to give out, comes this:
http://doonesbury.com/strip/archive/2012/02/12I'm among the stricter graders in my department, whose graduate students all seem to think they deserve an A. They don't, and I even give the occasional C to students that aren't cutting it.