The farmer: "That duck belongs to me because it is in my land!"
The gentleman: "No no, that duck is mine because I shot it!"
The farmer: "Let's solve this in a traditional way: I kick you to between your legs and then you do the same to me. After that the duck belongs to him who yells less?"
The gentleman: "It okay for me, let's do so."
The farmer kicks with all his power to between legs of the gentleman who falls down and yells in big pains. After twenty minutes the gentleman is able to stand up.
The gentleman: "Now it is my turn!"
The farmer: "Let it be, keep your duck!" and then the farmer walked away...