> you're told that you weren't allowed to think of obvious idea X because someone has a patent, pay up $10 million dollars. (Actual dollar amount varies widely.

> you're told that you weren't allowed to think of obvious idea X because someone has a patent, pay up $10 million dollars. (Actual dollar amount varies widely.) And that's not counting the torturous legal fees, if you wish to try your luck at court in a case that is likely to drag on for eons.