On: I couldn't escape poison oak, so I started eating ...

[rwmj]

Is it the same plant that was used for shokushinbutsu, the "self-mummification" practiced by Japanese monks? https://en.wikipedia.org/wiki/Sokushinbutsu

Edit: OK, not quite. The Japanese lacquer tree was used which produces the same "active" substance which is what slowly kills you. https://en.wikipedia.org/wiki/Toxicodendron_vernicifluum

[mlyle → rwmj]

> which is what slowly kills you

Again, not quite: starvation by not eating normal food is what kills you.

Urushiol is non-toxic at even massive doses; but vanishingly small doses will provoke painful/itchy allergic reactions in many people.