Lighting a charcoal grill with liquid oxygen: https://www.youtube.com/watch?v=UjPxDOEdsX8
I am glad to have been 100s of miles away.
Thank you for your work, and of corse for the many many laughs.
Almost everyone and everything around us of any importance is one mishap away from going disappearing in a hot, sooty flame.
(it's a great book in general, but the bit about our use of a volatile gas for a living environment is pretty neat)