I've been blasted directly in the face underneath houses with Chlorpyrifos organophosphate termiticide. DOZENS AND DOZENS of times. Had it on my hands and arms almost daily for several yrs.
methyl carbamate, synthetic pyrethroids, or org-phosphates, pyrethrum, fungicides,
So far no twitches or tremors. Maybe a tick or shimmer but that could be present meds.
Did have one retired Lt Colonel, an administrative career man, I'd spray his home monthly for fleas.
He'd have to go play on the bush hogg or spin wrenches on his project cars for several hours after I treated his home. First time I showed up he started sounding like Sylvestor the Cat all sufferin succotash and chit. Said his tounge was going numb.
Sounds like that Chuck dude on Better Call Saul.
