4 men were sitting in a room together being interviewed for a new job. The interviewer told the men "I am going to ask you each one question".
Turning to the first man the interview asks "What is the fastest thing you can think of and why?"
The first man thinks for a moment and replies "A thought, because before you even realize it that thought is in your mind"
"Good" replied the interview. He turns to the second man and says, "Ok same question. What is the fastest thing you can think of and why?"
The second man thinks and says "A blink because one second your eyes opened then closed then open before you even realize it happened."
"Good". Turning to the third man, "Same question"
"Electricity", says the third man, "because where I live on a big farm we have a light wayyyyyyy out there on the barn. I flick a switch at the house and as soon as I switch it that light comes on."
"Ok", to the forth man, "Same question."
The fourth man thinks long and hard and finally says, "diarrhoea."
The interviewer looks oddly at him and asks "Diarrhoea?"
The man says "Yeah, diarrhoea is the fastest thing I know of."
"Why do you say that?"
"Well," the man replies, "last week I had diarrhoea, so I ran to the bathroom, and before I could think, blink or turn on the light, I shit my pants"