Just who was on first?
Think of it in the statement sense, not as a question.
Who’s on first (the authorized plagiarized version)
Yes. Who is on first, Lou.
Okay, but Who’s on second?
No. Who’s on first
I don’t know.
What’s on second. Who’s on first.
He’s on third.
What about tomorrow?
[OK, I’ve had enough fun playing Abbott to everyone’s Costello, but I’ve got to go now.]