Getting locked up is no joke. But it might just be a good way to get in the best shape of your life. There's a reason guys walk in thin as a beanpole (is that phrase still a thing in 2016?) and walk out super effin’ swole.
But how do they get there? Let's take a look at some workouts they do. The following routines need the amount of space you'd have in a jail cell and just your bodyweight. Try one of them for a month and see what happens. Just don't take it a step too far and start committing crimes, okay?