"So in other words, the practically drowned the rats every day in a dosage that was desgined for animals that are 1,000 times heavier than rats." I've read a number of articles about the "Gulf War Syndrome." This DEET seems to be a component in this illness. (The GI's used the 'military version' there in the desert)
I used to practically bathe in that stuff while I was in the Army. I think I'm pretty much OK....