This bloke is working on the buses collecting tickets. He rings the bell for the driver to set off when there's a passenger half getting on the bus. The driver sets off, the woman falls from the bus and is killed.

This is the third time he's done this, and he's prosecuted for murder. He's convicted and seeing as it's Texas he's sent to the electric chair.

On the day of his execution he's sat in the chair and the executioner grants him a final wish.

"Well" says the man, "is that your packed lunch over there?"
"Yes" answers the executioner.
"Can I have that green banana?"  The executioner gives the guy his green banana and waits till he's eaten it.

When the man's finished, the executioner flips the switch sending thousands of volts through him. When the smoke clears he's still alive. The executioner can't believe it.

"Can I go?" the man asks.
"I suppose so" says the executioner, "that's never happened before. But I don't understand how you can still be alive after all that? It's something to do with that green banana isn't it?" he asked.

"Nahh" said the bloke, "I'm just a really bad conductor"