A blonde is driving home when she sees a big yellow truck in front of her. At the crossing when the truck stops she gets out of her car and runs to the drivers window of the truck. She yells:
"Hi I'm Pam! Your truck is leaking!!"
The truck driver ignores her and drives away.
The blonde gets back into her car and follows the truck to the next crossing where she does the same thing.
"Hi I'm Pam. Your truck is LEAKING!!"
Once again the truckdriver ignores her.
When the blonde for the third time tries to get the message through to the truck driver, he loses his patience.
"Hi I'm Pam. Your truck is really leaking!"
He replies:
"Hi I'm John. It's the middle of January and I'm driving the salt truck!"