Sorry, Nick, I wasn't recommending drug use. Following the comment about crashing an airpane I just meant that there (normally) is no public safety factor involved with making music, (urine screening being my metaphor for public safety jobs) and that's a very liberating notion re: creativity. I should have said that when a musician makes a mistake nobody gets hurt 
I made a poor choice of words to mislead you, my apologies. 
and thanks for the chance to clarify.I never recommend anything dangerous or illegal to my friends.
