Temik is bad news and there is a very good reason it is very highly regulated. As clumsy as I am these days, I'd be afraid to use it. I'd be scared somehow it would touch my skin.
It’s about ingestion. I suppose if you’re drenched in sweat and spill some on you, and didn’t wash it off, some absorption would occur, but handling it dry won’t drop you in your tracks…as long as you wash your hands before eating.