Hold up a $10 note and offer it to anyone who can perform a simple task. Bring the volunteer up the front and tell them that the $10 is theirs if they can simply jump over it the way you designate. Lay the note on the ground. Have the person stand with their toes to it. They must bend over and grab their toes. Now, tell them that they can’t let go of their toes and they must jump over the $10 note. No matter how they bend, contort, etc. they won’t be able to do it – trust me!