On the border of Russia and Poland there’s a small forest. Half of the forest belongs to a Russian farmer, while the other half belongs to a Polish man.
One day, while out for a walk in the woods, the Russian man comes across a wolf caught in a trap. He rushes back to his house and calls his Polish neighbor.
“There’s one of your wolves caught in a trap on my side of the forest,” he tells him.
“How do you know it’s one of *our* wolves,” the Polish farmer asks.
“Well,” the Russian replies, “he’s already chewed off three of his legs and he’s still stuck.”