John, I don't suppose you have read many employee contracts. Most employees of any large corporation sign an agreement than can be several pages long telling them what they can't do on or off the clock.
This has even gone as far as banning smoking on your own time and other things that are far from personal freedom. Virtually any tech company makes you sign a "no compete" and intellectual property agreement. We gad a guy at IBM who got fired because he was selling boat propellers on the side ... on his own time. The contract was so air tight, he couldn't find a lawyer who would take his case for a taste.
