Invite everyone to stand in a circle shoulder to shoulder. Each person then turns to
the right to face the back of the person in front of them. Ask them to place their
hands on the shoulder of the person in front. On the count of three they slowly
begin to sit down on the lap of the person behind. As long as everyone is helping the
person in front of him or her to sit, then everyone should be supporting the weight
of everyone else. Of course, should someone slip, the game becomes 'human
dominoes.' ☺ It might take a couple of attempts to complete the challenge.