Truffle's point is well-taken. I knew a ton more about criminal law, PI, real estate, estates and trusts, and property back when I was in law school. Little practical knowledge mind you, but I knew the red-letter law. Now I am an expert in Labor and Employment and related subject matters (contracts, administrative law, unfair competition issues, some corp. law, etc.), but have forgotten 50% of the red letter stuff in other subjects that I learned in law school.