Old Mrs Hubbard went to the cupboard
to give her poor dog a bone.
When she bent over,
Rover took over
and gave her a bone of his own.
Edit:
I forgot the, "OOOOOHHHHHH!!!"
I heard Jerry Seinfeld discussing him on the Howard Stern show, and I was either too young to know, or Andrew was only famous as "The Dice." Jerry said that Andrew was incredibly funny, and "The Dice" was simply one of his characters at first. That evolved into his whole schtick.