Don't blow it off! My brother was Bipolar and he committed suicide a couple of months ago (Dec. 28, 2004). I never thought too much of it at first. He was always depressed for the last 5 years and he decided to drive his eclipse under a 18 wheeler parked on the side of the road. He was only 20! At least talk to him, there are support groups out. Don't wait cause you might regret it.