Things I've Learned From Movies/shows/books That I'm Convinced Will Come in Handy Some Day

Realistically, I'll probably never need to use this information, but I've never been one to be imprisoned by realism.
  1. Shoving a hose down a toilet's u-bend will give me an unlimited supply of air
    Kingsmen: the Secret Service
  2. How to Hotwire a card
    Like, every movie/show. (Technically don't know how to, but I feel I need to learn ASAP. People always have to do this.)
  3. Putting axel grease on a bullet will help it go through reinforced doors.
    High Dive.
  4. Picking a lock
    Suggested by   @sarblake