Cow and Barbed Wire

Alright, listen up, buttercup. So, you got this cow, right? And it ain't too bright, just like you. It tries to jump over a barbed wire fence. Now, barbed wire is sharp, genius. Cows are big and clumsy. So, when they try to jump over something sharp, they mess things up real bad. It's not rocket science, unless you're trying to build a rocket out of cow pies, which I wouldn't put past you.