My granddad was a chemistry teacher in a grammar school many years ago, my dad has lots of tales about taking chemicals home and blowing stuff up. Sodium wrapped in newspaper and thrown in a canal lock was a favourite!
Dangerous stuff chemicals, if you're going to 'experiment' at least find out what to do when they go wrong before hand. My granddad refused to continue with anyone who couldn't answer basic first aid questions even before they got to the teaching/knowledge part of the interview.
Biting the hand that feeds IT
