Whoops Thread: Share your Ingame Mistakes

[The Grim Sleeper]

I tried to make nitroglycerine inside of a monkey for fun with several types of smoke and foam. Test-chamber gone, toxins gone, art-lab gone, but the SCIENCE! went on.
Then I had a monkey that didn't explode. SUCCESS, I think, but I'd better check by Reagent scanning her. So I walk right into the clouds of chemicals, without a mask on.
It did work though, somebody became a reagent container full of nitroglycerine.