This didn't come out of a cracker, (actually it came out of a book of Urban Ledgends) but it's still pretty bad..
A 28 year old man wants to commit suicide. So he stands on the edge of a cliff, ties a rope around his neck and attaches the other end to a rock 500m away.
He then drinks about 4 litres of poison, and points a rifle at his head..
He then jumps and tries to shoot himself im freefall.
Unfortunately, he misses and shoots through the rope.
As a result he falls into the sea and swallows sea water. This causes him to vomit up the poison.
He survives, and is picked up by a trawler crew, but dies of hypothermia on the way to hospital!