Split the Kipper, incredibly, was a popular game played by children in the 1970’s.
All that is required to play is soft ground, stout shoes, a knife and large amounts of stupidity. That’s right, a game for children involving

knives.
Players stand facing each other a distance of 1 or 2 meters apart with their legs together. The leading player, the one with the knife, then aims and throws his weapon so that it lands outside his opponents feet. That is to the right of his right foot or left of his left foot. The knife must stick into the ground blade first and must be within 30cm of said foot. If it is further away or if it doesn't stick in the ground at all then it is a ‘no-throw’ and doesn’t count. If it is within 30cm then that player has to move his nearest foot to where the knife landed. He now pulls the knife out of the ground and it is his turn to throw back in the same way.
The game continues with each player taking turns to throw whilst all the time trying to remain standing, their legs getting further and further apart. If a player falls over or gives up, he loses.
When one player feels he can’t take it any longer he may decide to ‘split the kipper’. Here he aims the knife between his opponents feet and if he throws it there successfully may now close his own legs to the starting position. Obviously, the number of times you are allowed to ‘split the kipper’ should be decided before starting otherwise games can continue a long time.