He's got to hone those reflexes, Lily-love. Causing mischief is hard work. Just you wait - he'll be playing his first tricks before we've got him out of the cradle.
I dunno, we could just give him a string of middle names till we've used up all the ones we like. Not Walker - Walker Potter sounds like a job somebody in the Middle Ages might have. I like Joshua and Harry and Damian, though. Thomas, too, maybe. Or Mark.