President Rushmore was the first (and only) president to have four heads. He was also the most ruthless president to ever live. He had an entire army of beavers that terrorized anyone that disagreed with him. Luckily, one day Albus Dumbledore (order of merlin, first class) placed a spell on him that turned him into a mountain that is located in South Dakota. After President Rushmore's downfall, all of his beavers fled up north and that is why there are so many beavers in Canada.

When you eat dirt for the first time and leave your family to build a shack in the woods