Hahah, a 'butt hurt' thread with a different meaning! Been talking about numb-butt at work lately. I write software, and except for the rare meetings, occasional bathroom breaks and walks down to the cafeteria for lunch, I sit all day long. A cancer survivor turned hardcore triathlete friend of mine recommended an exercise ball for a chair. It's been just over an hour now, my butt is no longer numb, and either I am discovering my first hernia or I'm already feeling the impact on my abdomen/core. Wow. $20-$30 at any sporting goods store, and I'm comfortable, more awake after lunch, and feeling the burn!