Back in my teen age years I used to play those Avalon Hill wargames, the ones with the little square laminated cardboard pieces and the hexagonal maps.
Anyways, one time me and a couple of friends got together with another young kid none of us knew very well to play one of these games, and this kid's acid from his fingers turned any cardboard piece he touched yellow almost instantly, I kid you not. And we were playing one of my games, and I was cringing because all the pieces were turning yellow :(
Maybe OGG's sweat is like that kid's