Bomb Harry found
I love Harry!! I've watched this movie a hundred times and am watching it on AMC. I have wondered about something; the bomb that Harry finds in his mailbox has a stopwatch on it. He disarms it by stopping the stopwatch and that is it. It is disarmed. The one that blew Early up was one activated when he put the key in his lock. Later, Harry turns the clock back on to blow Briggs up.
Why the stopwatch?? What if Harry had stopped off somewhere to get a beer and didn't get home for an hour or so? Would it have detonated? It doesn't make any sense for it to have a timer.