A man shoots a duck from the sky...

but the duck lands in his neighbor's backyard with whom he's always been on bad terms. When he walks over to pick up the duck, his neighbor comes out and says: "This duck is in my backyard, therefore it is my duck."

But the man who shot the duck replies: "That may be true, but I shot the duck. Thus, the duck is mine."

The neighbor then says: "I'll offer you a deal: We play a game where we kick each other in the balls until one of us gives up. The winner gets the duck. Sounds fair?"

The shooter thinks to himself that this is probably his best chance of getting the duck, so he agrees. The neighbor then says: "Alright, since the duck landed in my backyard, I'll start."

So the neighbor kicks the shooter as hard as he can in balls, leaving the shooter crawling on the ground for a good ten minutes. Once he gets up, still shaking from the pain, he says: "Alright, now it's my turn."

But then the neighbor just says: "Nah, I give up, I'm a vegetarian" and walks away.