Seek help, if you need it

So sad the news from Virgina Tech but have we all known someone we thought unstable and not done anything. I feel we want to believe the best of people. I had a co-worker that nearly drove people insane with his odd behavior but, luckily, our company was proactive in diffusing the situation. What they couldn't do, other than suggest, is demand the employee seek professional help, so they eventually fired him. It saved the rest of the staff but I'm afraid we lost him and that was the sad part. A talented, troubled individual alone in the world.