It would seem that the boy needs a new nickname.
I walked into his room yesterday to help him get dressed (so that we could go look at yet another potential house to rent), greeting him with a cheerful "hey".
To which he replied...
Oh, the laughter.
Apparently I say that to him a lot - "hey babe" - in the short-for-baby sense. Having him turn around and say it to me...well, as I said, oh, the laughter.