Police spokesman Officer Samson Chan described this as “a minor incident” — or, as the good folks at Monty Python put it, “Don't be sentimental. Things explode every day.”
The reason the fiberglass trash can up and detonated is still under investigation — but police did not find any wiring or other material in the debris to indicate this was a sophisticated explosive. “It could be an M-80” or some other form of dynamite, Chan postulates.
The spokesman says he hasn't heard of any other items mysteriously blowing up in the area.