Here's a great example. This fella put a firework on a model plane and set out to find glory. Of course, it went poorly. Of course, it did. There wasn't any other way this was going to go.
Watch above as he launches the plane into the air and it takes that loping path model planes always seem to take. That leads to ignition and the plane launching itself toward a neighbor's house. The video cuts out abruptly at the end. Hopefully, the neighbor's house is no worse for the scare.