> report in the same paper described how a passenger on one of the
> platforms at Tokyo station was hit on the head by a bolt falling off
> the roof yesterday. Does something happen to bolts in Japan in Spring?
Thats what you get when a journalist googles for "bolt+fell+off+japan". I'm surprised they didn't mention it was a bolt caused this incident...
http://www.taipeitimes.com/News/taiw.../29/2003376292