that’s so interesting, because all mine did was stick to my hands. No reaction at all. I probably should have researched them before grabbing it. Guess I am one of the lucky ones.Now that’s one thing I won’t touch…saw what it did to my dads fingers when we had one growing up and I use those fingers daily!!!! Granted he was normally better about not touching it UNTIL the mad dash to save the stuff in the tank cuz it sprung a leak……