Locks are a tough subject. Even in prepping there's this idea of quiet nobility that we hear when people talk about breaking into a structure or home. You know, it's ok for us to shoot our neighbors dead and send our family away when resources get too tight, but God forbid you consider using some lock picking skills to get ahead in the game.
This is an informative video on creating shims from little more than aluminum. It’s an impressive skill set, though not an easy one to achieve. You will see the creator of the video who gets hung up on his first try. I really appreciate him not editing that out. This helps people along and lets them understand that it is a tough thing to do.
There is an emphasis on the fact that all locks are different and that some are harder to crack than others. This is another effective way to look at this thing. You won’t always win when it comes to shimming locks. Still, it’s something you need to practice if you want to be well rounded. This is an informative video to help you along our way.