This deserves a post of its own, rather than being lumped into the random notes.
Derek Lowe’s latest entry in the “How Not to Do It” sweepstakes.
Choice quotes:
…two guys who scavenged a liquid oxygen Dewar from a scrap metal yard and decided to put it back into service. According to the most detailed report, they tried to rig up a connection to refill the cylinder, but found that it vented immediately through the pressure-relief valve. So. . .well, yeah, you know what’s coming next: they took the darn thing off and plugged it shut. No more pesky venting!
And..
…one member of the Cylinder Kings ended up being blown across five lanes of traffic, while his partner was launched forty feet in another direction.
Photos at the link.