If you have traveled to New Orleans to the Aquarium of the Americas you have seen tanks like the one in this video. The huge multimillion gallon tanks hold hundreds of species of fish or in this case at least  one very active polar bear.

Have you ever thought as  you were standing next to all of this water piled up behind a sheet of special glass,"What if this glass breaks?". You are about to find out what happens when a polar bear throws a rock in a glass house. I will never stand next to the glass again. Unless it's at the penguin house. I love penguins and they don't have long enough wings to throw things.