After a sexual experience there are two sperms swimming for the home run.
Sperm #1: "I'll become a girl! I'll become a girl!"
Sperm #2: "I'll become a boy! I'll become a boy!"
Then a small crumb is swimming beside them and means:
"You both will become nothing! You're in the gullet here...!!!"

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Greetings from Frankfurt (Germany),
Sheriff ;-)

[This message has been edited by Sheriff (edited 06-04-2005).]