A penguin is driving in his car one warm summer day when it starts misfiring badly. He pulls into a service station and explains the symptoms to a mechanic. The mechanic tells him it'll be about a half-hour until he can diagnose the problem. "OK," says the penguin. "I see an ice cream shop down the street. I love ice cream...think I'll get a big vanilla cone while I wait."

The penguin waddles off for his ice cream and returns to the service station a half-hour later, licking up the dripping remnants of his vanilla cone.

"Looks like you blew a seal," the mechanic tells him. "Nah," replies the penguin, "it's just the melted ice cream..."