Well i wouldn't try killing him, no cheating either, suicide is doing the job for him so that's out of the question, and well I'll don't know too much about bureaucracy so wont even try that, no I just be waiting in my living room sitting in my lazyboy and when he arrives offer him a deal I do his job for the next few millennia while he relaxes and then am granted enough life force for another lifetime with youth bundled with it. Simple he's less grouchy and I get to live awhile longer and have something for my resume. Maybe he would even make a deal with me to switch places every once in awhile. So yeah that's how I would do it.