I've worked in labs with far less threatening (but still deadly) microorganisms and I could never imagine making a mistake with such a giant flask. It had to ha

I've worked in labs with far less threatening (but still deadly) microorganisms and I could never imagine making a mistake with such a giant flask. It had to have been mislabelled or maybe someone used used autoclave tape to seal something on the top? Only a idiot would pour an unlabelled solution of that size down the drain...