Who's there? - Stephen Mack #TeamMomo

Control freak. Now YOU say, "Control freak who?" - Bruce Lewis

Control freak who? - Stephen Mack #TeamMomo

I think we've already seen the punchline who? I'm confused. - Stephen Mack #TeamMomo

I think it should've been: Control freak. Now YOU say, "Control freak who?" who? - Morton Fox

Heh. Anyway, I'm being a jerk. Good joke, Bruce. - Stephen Mack #TeamMomo

I got it from my niece. I just realized that while most jokes are ruined if you have to explain them, it would work to explain this one if you did so in painstaking detail. - Bruce Lewis

This is why we don't tell knock knock jokes on friendfeed. :-) - Le Slip Anglais