If my husband ever sat down in a bus and did not offer it to a pregnant or elderly person or someone holding a small child, I would kick him in the shins. Come on, it's just common courtesy to offer your seat to someone who needs it more then you. I have offered my seat to others on a crowded bus because "it was the right thing to do". And to all you people who have leg cramps or a blister on your poor toes, and "can't get up", just say I'm too selfish to give up my seat, don't use these poor excuses.