I think free-range is best. After all, we want him to develop more meat for the jerky, not fat from lounging around in a cage. For extra effect, we can set some angry dogs loose in the range so he gets some much needed exercise.
As for the trap? That's easy. Instead of using bait, we just use a repellant. We know he won't go anywhere near a dictionary or spell checker, so we just line them up to make sure our fenced range is the only escape he has.