Below is an advertisement I found in an old newspaper here at work.
Day after day, many wonder: how can we rid ourselves of the "mouth breathers" around us?
Finally, we have found the cure!
Just wrestle that annoying person into a headlock and strap one of our patented Davis Chin Supporters on his or her face. In no time at all, the jaw will be completely immobilized, preventing any and all utterances of idiotic phrases, bigoted statements and moronic pronouncements.
The Davis Chin Supporter/Mouth Breathing Prevention Device is suitable for most celebrities such as Britney Spears and politicians
suffering from chronic stupidity. 
