Watch Yourself Die
For terminal cases only.
After watching someone die in a hospital awhile back it occurred to me that rather than being given higher and higher doses of pain medication I'd prefer to be given the highest possible non-lethal dose of something like ketamine. Since it's known to disassociate perception from sensation and provide something akin to an out-of-body experience I'd be able to watch myself die in comfort (presuming the out-of-body effect was real, I'd also be able to see who was really sad to see me go and who was just showing up to be politically correct). The idea then is to add this as an option on a living will.
Just so you'll know the field isn't entirely populated by wackos