A butterfly ate it

Camden, Nate, and I were at a store.  We walked by a rather buxom lady wearing a tube-top shirt.  Here is the conversation, as best as I can remember:

C: That lady lost her shirt.
M:  Oh, she only lost part of her shirt.  What do you think happened to it?
C: It got caught.
M: What caught it? 
C:  (Long pause)  A butterfly.
M: A butterfly?  What happened next?
C: It ate it.
M: What color was the butterfly?
C: Yellow.
M:  Oh.
C: It flew away.

I can't remember how the conversation ended exactly, but there you have it.  Now you know the origin of tube top shirts.  :)