I always thought a good Reality TV show would be "McGyver Survivor", where contestants would be hand cuffed and thrown in a cell. Then rip open an old can to shim open a padlock to get out of the cage?, and use the old style thermostat bimetallic spring to bypass a set of handcuffs, I wont go to the point of using smoke detector batterie(s) to activate the strike.
On Youtube and others they show drawing an M on a piece of can and folding correctly and cut out with scissors to make a shim.
I like to rip the can open by hand and tear the can to the shape of the shim, you don't always have scissors.