Chandler: So, is she gonna take the test?
Monica: No, she doesn't have to. I found out who the father is.
Chandler: Oh, God, it's Shovely Joe, isn't it?
Monica: No, it's not.
Chandler: How do you know?
Monica: Well, it turns out that Erica didn't pay much attention in sex ed class. Because the thing she did with that prison guy would be pretty hard to make a baby that way.
Chandler: Oh, God. What was it? The thing we hardly ever do or the thing we never do?
Monica: The thing we never do.
Chandler: Shovely Joe.