One afternoon in the Arctic, a father polar bear and his son polar bear were sitting in the snow. The son polar bear turned to his father and asked "Dad, am I 100% polar bear?"" Of course, son, you're 100% polar bear". A few minutes pass, and the son polar bear turns to his father again and says "Dad, tell me the truth. I can take it. Am I 100% polar bear? No brown bear or panda bear or grizzly bear?" "Son, I'm 100% polar bear and your mother is 100% polar bear, so you're certainly 100% polar bear". A few more minutes pass, and the son polar bear again turns to his father and says "Dad, don't think your sparing my feelings if it's not true. I really need to know... am I really 100% polar bear?" Distressed by this continued questioning, the father polar bear finally asked his son "Why do you keep asking if you're 100% polar bear?" "Because I'm freezing my fucking arse off out here!"