(Not) Counting

A couple of nights ago, Chris and John were playing with blocks when suddenly John began consistently counting, by himself, "six, seven, eight, nine, ten," having skipped learning all the earlier numbers. He did it several times, so I whipped out my camera and, of course, he stopped. So, what is humorous about the otherwise boring below videos is that John is enamoured with his favorite number, six, and that's just about the only number he will say.