He's not a world famous scientist or someone who contributed a great deal to humanity but I will never forget my high school science teacher Mr Doyle.

Even now many years on the only reason I can remember how to wire a plug is because of his method for remembering. He was a pretty crazy American from Buffalo. He had a saying "Blue y'all is Neutral! And Brown is Live because if you touch it, then that is what colour your pants will be! Then the remaining one is Earth".

Never forgot that lesson and it has came in handy many times in my life.