is there a us marshal standing over you in a cowboy hat and shotgun, chewing a tooth pick while u crack rocks with other rocks in your orange jump suit chained to your fellow crimnals?
Ok, let's think about this trade: 9 days in jail - then you're done. You get to meet some cool people, pump some iron and learn a few new tricks.
Or.....25 days of stacking shelves, worrying about putting books in the correct alphabetical order and sneering at those who don't put books back in the correct place - then you develop a hatred for them and on day 25 you go postal and run around shooting any person touching a book.
That's not likely to happen. Especially if he's not gang affiliated. There's loads of cool stuff to learn - just don't go ask any of them about how to dispose evidence.