The chem closet from hell. We got a new chem teacher when I was a sixth grader (6-12 school, we got this story in junior year chemistry) and he went back to clean out the old chem/bio closet. He found: Snake Oil from the 1930's (don't ask, I don't know) Several unidentifiable bio specimens Pink litmus paper (the atmosphere was really acidic, so all the blue litmus turned pink) Several pounds of pure sodium An empty lead lined container that caused a geiger counter to go haywire Osmium Tetrachloride (which is unbelievably toxic) Needless to say, I doubt that was a fun week for him.