"Did you hear about the chemist who walked into a pub and asked for a pint of adenosine triphosphate?
The bartender said "Sure thing...that'll be ATP, please."
And Andy told me about a conversation he'd had with a young chemistry pupil, who asked him what 'borax' was. Not wanting to be sidetracked at that precise moment he answered, "It's what a Japanese carpenter says when he hits his thumb with a hammer."