joke

I ran into a colleague, a math professor, in the locker room the other day.

mathprof: Hey Paul, how's your baby doing?

me: Great, he's growing like a weed (nice cliche, eh?)

mathprof: I have only one piece of parenting advice for you.

me: Okay.

mathprof: When he starts walking ....

me: Yes.....

mathprof: ... PUSH HIM BACK DOWN.