Ultima VIII: Pagan Cheats

Beren is immortal, whether at his house in Tenebrae or at his house in Daemon's Crag. If you drop him in deep water or yellow lava, he will be gone. (Note: If you move him once, he says, 'stop moving my stuff.' If you move him twice, he gives you a last warning. The third time, he comes after you with a vengeance.