Bullied or not, anyone who sets fire to a busload of people wasn't exactly playing with a full deck to begin with.
I'm thinking we should set up public suicide booths. If someone is so annoyed at the world that he/she wants to end it all, just can step into a clear box, latch the door from the inside, and end it all by whatever means. No one can stop it, and the person can't harm or kill any bystanders.
For those wanting something a little bigger - have a large, fenced off concrete pad next to a 30 story building. On the roof overlooking the pad, there's a diving board.
Yeah, maybe my ideas are wrong. Then again, they utterly rock in comparison to getting incinerated by some screwed up moron who has a problem (real or imagined) and decides to share his fiery exit with others who picked the wrong bus on the wrong day.