20 Things You Somehow Missed In Back To The Future Part 3
10. The Clock That Caused Doc's Accident Is Visible
You probably remember that Doc explains in the first movie that he came up with the idea of the flux capacitor after slipping off the toilet while trying to hang a clock above it and hitting his head on the sink.
In Part III however, as Doc freaks out upon seeing Marty in his home, he runs into the bathroom and for a few scant seconds we can see the interior, where lo and behold, there's indeed the famous clock hanging above his toilet.
Yet why anyone would want a clock hanging directly over their toilet, not to mention why he needed to stand on the toilet to hang a clock that sits so low, are questions that will baffle mankind forever.