A man does the credit card challenge with a boy in the living room. When he drops the card that he holds against the door, the boy goes to stop it with his head and headbutts the door and falls down.
Two men stand at the bottom of a rock and link arms to catch a teen boy when he does a trust fall off the rock, but when the boy lands in their arms, he pulls them in and they bump heads with each other and drop the boy.