Yeah, I saw this one coming from a mile away. /bountycheck someone, kill them, log off for a minute. Log back in and go do it again. The timer is being reset with logout.
Another thing you can do, though i dont recommend it, is keep harrasing someone,(dont be a jerk) keep killing them as much as you can till they get mad and put a price on your head, then go straight to your BH friend and have him kill you, split all those millions 50/50.