A man is working on the buses in Texas collecting tickets.
He rings the bell for the driver to set off when there's a woman half getting on the bus. The driver sets off and the woman falls from the bus and is killed.
At the trial the man is sent down for murder and seeing as it's Texas he's sentenced to the electric chair.
On the day of his execution he's sat in the chair and the executioner grants him a final wish. "Hmm..." says the man, "is that your packed lunch over there?"
"Yes" answers the executioner.
"Could I possibly have that green banana?"
The executioner gives the man his green banana and waits till he's eaten it. When the man's finished, the executioner flips the switch sending hundreds of thousands of volts through the man.
When the smoke clears the man is 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."
The man leaves and eventually gets a job on the buses again, selling tickets.
One day, he again rings the bell for the driver to go when people are still getting on. This time a man falls under the wheels and is killed. The bloke is sent down for murder again and sentenced to the electric chair once more.
The executioner is determined to do it right this time, so he rigs the chair up to the electric supply for the whole of Texas. "Do you have a final wish?" asks the executioner.
"Can I have that green banana in your lunch?" asks the condemned man.
The executioner sighs and reluctantly gives up his banana. When the bloke has finished eating the banana the executioner flips the switch. Millions of volts surge through the chair, blacking out the whole of Texas in the process.
When the smoke clears the man is still sat there in the chair grinning.
The executioner can't believe it and lets the man go.
Well, remarkable as it seems, the bloke gets his job back on the buses. It's only his first day back, but once again he rings the bell while passengers are still getting on, this time killing three of them. Just as before, he's sent to the electric chair again.
Now the executioner rigs up the electricity supply for the entire USA to the chair, determined to do the job properly this time. The bloke is sitting there in the chair smiling as the executioner asks him for a final wish.
"Well" says the man, "I'd really like that green banana out of your lunch."
The executioner hands over his banana and the man eats the whole thing, skin and all.
As soon as it's gone, the executioner pulls the handle and a gazillion amps go through the chair. The smoke takes ages to clear, but after it rises the bloke is still sat there alive without even so much as a scorch mark.
"I give up!" says the executioner, "I simply don't understand how anyone could possibly still be alive after all that." He stroked his chin. "It's something to do with that green banana, isn't it." he says.
"Nah..." said the bloke, "I'm just a really bad conductor."