Announcer walks in leading a person under a large blanket.
Announcer: Ladies and Gentlemen, I have here world's ugliest man. One look at his face and you will fall unconscious.
Would anyone like to take a chance looking at the world's ugliest man?
Pick an adult volunteer (pre arranged) from the audience.
The volunteer walks up to the ugliest man and lifts the blanket carefully so only he can see the ugliest man's face. As soon as he sees the face he keels over on the ground.
Announcer: Who else would like to take their chance looking at the world's ugliest man?
Pick another pre-arranged adult to come up an look under the blanket. This person too looks carefully at the ugliest man and keels over on the ground.
Announcer: Can I get one more person to take a chance to see the world's ugliest man?
This time pick an unknowing adult from the audience (one that can take a joke!!!)
When this person comes up and slowly lifts the ugliest man's blanket, the ugliest man keels over on the floor.