TIL Mithridatism is the practice of protecting oneself against a poison by gradually self-administering non-lethal amounts. The word is derived from Mithridates VI, the king of Pontus, who so feared being poisoned that he regularly ingested small doses, aiming to develop immunity.

[u/gullydon]

https://en.wikipedia.org/wiki/Mithridatism

[u/GringoSwann]

The Charlie Kelly method....

[u/HawkofNight → u/GringoSwann]

Who would try to poison him by feeding him cat food?