I grew up with horses, but the only chemicals to do with them was the worm paste we used, and we were always soooo careful not to get it on us.
I think I had more exposure with chemicals for other farm type stuff, although being a child I never had anything to do with them, just the residues.
I also worked on a orchard and vineyard, and some of the chemicals they used there were a bit worrisome, but once again, if I handled chemicals I wore all ALL the gear. The guys rekonded I went overboard, but I never once thought I did.
Kate