Abbot: "So, He's on first base..."
Costello: "Who's on first base?"
Abbot: "He was."
Costello: "Who's he?"
[long argument]
Abbot: "Then I threw the ball to U"
Costello: "I wasn't even there!"
Abbot: "I was there."
Costello: "You may have been but you sure as hell didn't throw the ball to me!"
Abbot: "Of course not. U and Me weren't on the same team."
Costello: "You can say that again!"
Abbot: "Not for a while. The ball hit U in the face."
Abbot: "So, He's on first base..."
Costello: "Who's on first base?"
Abbot: "He was."
Costello: "Who's he?"
[long argument]
Abbot: "Then I threw the ball to U"
Costello: "I wasn't even there!"
Abbot: "I was there."
Costello: "You may have been but you sure as hell didn't throw the ball to me!"
Abbot: "Of course not. U and Me weren't on the same team."
Costello: "You can say that again!"
Abbot: "Not for a while. The ball hit U in the face."
That could go on for a long time...