Ms. Smith stopped to reprove Johnny for making faces: “Johnny, when I was small, my mother used to tell me that if I made ugly faces, at some moment it would freeze and stay like that.” Johnny looked up at her and thoughtfully replied: “Well, Ms. Smith, you can’t say you weren’t forewarned.”
Source:
http://www.cleanshortfunnyjokes.com/little-johnny-jokes/if-i-made-ugly-faces/
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