It really depends on what kind of person you are, and what kind of prison you go into. A friend of mine that went to prison told me a few stories. People that were easily intimidated tried to stay in their cells at all times, which meant not coming out to shower. If you come from a relatively well-off background, and people pick up on this, you might find yourself being extorted to pay £200 a week at the expense of your family, in order to save yourself from being kicked in, or worse, having boiling water and sugar poured over your face. In short, prison is not a nice place.