 Challenging Thor to lift his pet "cat", who in reality is the Midgard Serpent, the Storm Giant is terrified when the Thunder God lifts all but one of the cat's feet off the ground.The second encounter occurs when Thor decides to cheat fate and kill the creature.Taking a fishing boat with the Giant Hymir, Thor uses the head of an ox on a chain to draw the Midgard Serpent to the surface of the ocean.