"During The French Revolution" joke
During the French Revolution a priest, a lawyer and a technician were lined up at the guillotine to be beheaded. They were given the choice to look up or to look facing down in the guillotine.
The priest said, "Well Heaven is up, so I'll look up, so I can see where I'm going." They placed the Priest in the guillotine facing up and released the blade. The blade stopped just inches from the priest, so they let him go, thinking it was a miracle.
The lawyer thought, "Well if it worked for the priest, it might work for me," so they placed him in the guillotine looking up. They released the blade, and it stopped just inches from the lawyer, who claimed he can't be executed twice for the same crime, so they let him go.
The technician thought, "Well why not?" So they put him in the guillotine looking up, and the technician said, "Wait a minute! If you swap the red and the blue wires over, you might make this thing work."
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