Law(actually a conversion course for what it's worth), qualified as a barrister and practiced in crime for 10 years, did a few cases at Teesside Crown but mostly Bradford and Leeds. A few footy cases in there for good measure. Now I have two jobs - I work in a bank with the role 'legal' in the title but not actually necessary to have a law degree, or indeed a degree at all.
Then I have a side business as a travel agent (hence the username) where clearly you don't need a law degree but knowing the law does come in handy when something goes wrong and you need to sort it out!