When he turned 18 his dad took him down to the local pub for his first pint of beer. He took his first sip and “whoosh” his torso appeared. He took a second sip and his arms and legs appeared.
He was so excited he stood up and ran outside into the road where he was knocked over by an oncoming truck. He was splattered all over the road.
The barman looks at the Dad and says “You know what? That boy should have quit while he was ahead!”