As a chemist, my most horrifying compound is Dimethylmercury. It readily passes through protective latex and PVC. Consider Karen Wetterhahn. She spilled a couple of drops onto her gloves, quickly cleaned it up but still ended up dying a rather gruesome death where she persisted for weeks in a state that shifted from comatose to highly agitated before she passed. This was preceded by nearly a year of abdominal pain, weight loss and mental decline. Just a little bit will kill you in a slow, agonizing death and your gloves won&#x27;t even save you!