I have some experience burning munitions. :)
Most of the toxic materials that need to be incinerated are mental constructs of various derangement syndromes. They preclude one from seeing sunlight.
Ask your son-in-law about exposure to JP5 and it's affects. A lot of it was used for various purposes, including fuel for heat. JP5 migrates and covers everything.
Become the kind of person that when your feet hit the floor in the morning, Satan groans and says, "OH NO, HE'S AWAKE".