I've spent a couple of days in lock-up, but I've never been to prison. I have a morbid dread of being incarcerated, and guides like this don't help.
NEVER invoke debts you cannot repay. It is best not to invoke any debts period. When you first enter any institution, you will be approaced with 241 offers. Meaning that the person will front you 1 item (pack of cigs, commisary food, whatever) but you will have to repay them two. This is a classic trap for unexperienced inmates. If you smoke, quit. If you want items from the commisary, etc. wait until you have money on your books, or your in a position with your prison job that you can run your own hustle, and have items to barter with. The basic rule, is to NEVER take ANYTHING on credit. This will get you killed or seriously injured or TURNED OUT and pimped to pay your bill real fast.
(via MeFi)