Child: *drinking milk*
Farmer: Hey, what are you doing?
Child: Oh, I just milked one of your cows.
Farmer: We don't have any cows, we only have bulls.
Child: *realizes*
How do you keep a bull from charging?
You take its credit card away.
Chuck Norris decided to sell his urine as an energy drink, which you now know as Red Bull.
What's a bull's favorite body part?
An eye-BULL!
How do you stop a bull from charging? Cancel its credit card.