I knew a fellow...
...(model railroader too) who took an acetylene torch to a black 55 gallon drum to cut it in half and make a BBQ/smoker. Well, after the fiery explosion and smoke cleared, the black drum was no mo' and his face was red, for weeks (as the new skin grew back). A model railroader with no eyebrows or hair, or face is not a pleasant thing.
We have many different colored drums around our plant. I worked for Estee Lauder- perfumes while in Art School- had hundreds and hundreds of black drums. The sweetest I've ever smelled. Then there were the red drums with white ends- held vegetable oil used for hydraulic applications. This was for elevators- people, freight & service. (Is there an animated vomit icon?) Man, this stuff was the worst. You ever smell rancid vegetable oil? Maggots wear clothes pins when near the stuff.
Too much info? Eh, me too!
Mark