When Rainn Wilson quips "nap time, motherfuckers" before killing a bunch of zombies, I think he was talking to the scriptwriters, who couldn't be bothered to come up with a single interesting moment, joke, or concept for Cooties beyond its promising premise..
What a shame, this one sounded pretty good in concept and the idea of having to kill a bunch of kid zombies seems like the kind of thing that could be transgressively fun (if "transgressively fun" shows up on the video case blurb, I'm ok with that too). I run hot and cold on Rainn Wilson, but I'll have to check out The Boy, never heard of it.
Gah! Another wasted cinematic opportunity! Well, you've convinced me not to watch it. Do you get any money if we follow your link to Amazon but then choose a different movie?