One Olympic swimmer's pre-race superstition has viewers wondering why he flips the bird. Canada's Santo Condorelli, 21, started flipping his dad his middle finger before each race when he was a child.

Cats have always been little acrobats at heart, but this video proves just how far some will go when the right motivation is dangled in front of them. Forget your average “sit” or “paw” trick, this ...