Jumper Jokes

A guy walks into a bar carrying a pair of jumper cables and sets them down on the bar.
The bartender said: "Now don't you start anything!"
What do you get if you cross a tiger with a kangaroo? A stripy jumper!
Unfortunately, the jumper cables are getting a divorce. They just had no spark.
What’s the best way to make a bull sweat?
Put him in a tight jumper.