I just recently received my organ donor card and I remembered this sketch from Monty Python, hopefully this doesn’t happen! (Warning! If you’re little big squeemish don’t watch)
Moving onto something more relevant, it is a shame that more people don’t register to the card, there are far too many people who do end up waiting for the call that a donor has become available (can’t remember the exact figure). There was talk a couple of years ago of introducing a system whereby everyone would be viable to donate their organs once unless they specifically asked not to be which personally would be ideal (well actually personally I take David Mitchell’s idea on Mock the Week that all bodies should revert to the ownership of the state after death, but humans can be insecure creatures at times).