[HPsquared]

Or a swimming pool full of those spicy rocket propellents discussed in the book Ignition! which have combustion products like hydrogen fluoride.

[grues-dinner]

Neither of the hypergolics described in Command and Control seem chill either: the fuel reacts with atmospheric water and oxygen, the oxidizer is in the highest category of poison (https://www.penguinrandomhouse.co.za/extracts/command-and-co...).

Indeed there's no such thing as a free launch, and that is rocket science.

[exe34]

"Things I will not work with" - "at this point hydrogen fluoride loses its gentle nature".

[sheepscreek]

Would love to take a look at your library.

[FiatLuxDave]

Not the poster above, but as someone who also has a copy of Ignition! in their library, I think you might enjoy the pdf version:

https://library.sciencemadness.org/library/books/ignition.pd...