Luke is like the cowardly lion from wizard of oz, in that they both have two eyes. Some people find his manner off-putting, but to them we say "You are absolutely correct, sir or madame. You are as observant as you are unattractive. Perhaps later you could hide behind the bushes and then just stay there." In 1985 Luke discovered that his elderly best friend had created a time machine out of a Delorean and some plutonium stolen from Libyan nationalists. Luke entered the time machine with the intention of going back in time to patent tooth decay, but then Doc got into the time machine with him and turned the lights down low. Luke has been uncomfortable in cars with other people ever since.