Bootleggers sometimes used old radiators to condense their moonshine. Thermodynamically, it worked great. Problem was the radiator was soldered together with lead solder. the lead got into the moonshine poisoned some people. It's enough to give moonshine a bad name.
“We should be careful to get out of an experience only the wisdom that is in it and stop there lest we be like the cat that sits down on a hot stove lid. She will never sit down on a hot stove lid again and that is well but also she will never sit down on a cold one anymore.” - Mark Twain