Old Smothers Brothers routine:
Tom (sings): I fell into a vat of chocolate.
I fell into a vat of chocolate.
Dick (sings): What'd you do when you fell into the chocolate?
Together: Lolly doo-dum, lolly doo-dum-day...
Tom (sings): I fell into a vat of chocolate.
I fell into a vat of chocolate...
Dick (interrupts): Tom, Tom! I just asked you, what did you do when you fell into the chocolate?
Tom: Well, you see, I fell into this vat of chocolate, and...um...
Dick: Wait a minute. How did you fall into a vat of chocolate, anyway? Where was this vat of chocolate?
Tom: It was on my way home from school. I would pass by this vat of chocolate.
Dick: But wasn't there some kind of railing or something, to keep people from falling in the chocolate?
Tom: Well, um, you see, I used to kind of walk on that railing...
Dick: And you fell in the chocolate.
Tom: Yeah.
Dick: Okay. So what did you do when you fell in the chocolate?
Tom (sings): I yelled Fire when I fell into the chocolate.
I yelled Fire when I fell into the chocolate.
Dick: (sings): Why'd you yell Fire when you fell into the chocolate?
Together: Lolly doo-dum, lolly doo-dum-day...
Tom (sings): I yelled Fire when I fell into the chocolate.
I yelled Fire when I fell into the chocolate...
Dick (interrupts): Tom! Tom! Why, if you fell in the chocolate, why did you yell Fire?
Tom : Well, it just kind of seemed like the thing to do...
Dick : Tom, listen to me. We're going to play the song one more time, and I want you to say why you yelled Fire when you fell into the chocolate! (plays guitar)
Tom (sings) : I yelled Fire when I fell into the chocolate...
Dick (sings) : Why'd you yell Fire when you fell into the chocolate!?
...
Tom : Because nobody would have saved me if I'd yelled "CHOCOLATE!"
Together: Lolly doo-dum, lolly doo-dum-day...