I'll have to ask DH if he's found this to be true. So far the worst kid in his first grade class has an unusual name (but not YOUNeekLY spelled) and she's a budding sociopath. We call her "brickface."
The kid with a name that starts with a K that really only should start with a C seems to be okay. He did wet his pants a few weeks back, but hey, it's first grade.