that reminded me of a non-mechanical boomy failure:
Few years before left the agency I worked for, it was decided that everyone had to attend a class on terrorism: things to watch for, people to notice, that kind of thing. Of course it included a session on bombs, and one of the subjects brought up was that a lot of common stuff, properly combined, can make an explosive.*
The guy teaching that part insisted on pulling a lady up front to describe her personal chemistry experiment in the bathroom. Seems the holidays were approaching, she had family coming and wanted the house spotless, including the toilet(yeah, you probably see where this is going). So she started with toilet cleaner, added some bleach, added some other stuff, and was shaking some Comet in just prior to scrubbing. She thought the vapor was dust from the Comet.
When she came to, she was kind of mashed into the wall, the toilet bowl was mostly gone, the family was scared to death and the ambulance was on the way.
Whatever brew of cleaners she put together, the different elements Did Not Play Well Together. Which led to a couple of days in a hospital, a new toilet and a refurbished bathroom.
Not connected with above, the day I hit the range with Jennifer, Evyl and Weebot, some video was taken of one of the test shots
Came out pretty well
*Wish I'd been online then, and had known about Huffman.