Necessity is the mother of invention. The father is unknown.
The following patent was issued by the US Patent and Trademark Office on November 22, 2005.

Amusement Device That Senses Odorous Gases in a Bathroom

patent#: US 6966840

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filed under Toilet
view the full patent  | comments (49)
posted on 11/27/2005, patent issued on 11/22/2005

"A novelty device that makes humorous statements when a person is having a bowel movement in a confined bathroom. The device includes an automated character, such as a bird in a birdcage, a skunk with a gasmask or some other character. Within the device is a gas sensor for detecting at least one gas emitted during a bowel movement. The device also includes a speaker for transmitting an audible message. When gases from a bowel movement are detected, audible statements are transmitted and synchronized movements are effected in the automated character."

"Since most prior art amusement devices must be manually activated, the broadcasting of a message by the voice synthesizer circuitry is often anticipated. For example, when a child wants a doll to speak, that child purposely squeezes the doll and expects to hear the doll speak. However, as is well known in comedy, timing is everything."

"The configuration of a canary in a birdcage was selected because canaries were often used by miners to detect the presence of gas in coalmines. As such, the image of a canary in a birdcage already provides the impression that the device is a gas detector. "

"Once activated, a humorous audible message is broadcast. The massage may say "What a stench! Somebody open the window! There are rules against cruelty to animals!" A countless number of messages can be used. The messages can be simple and benign or can be highly X-rated."

"The canary may drop over dead."

"There is a fine line between a novelty device that is funny and a novelty device that is annoying."

Amusement Device That Senses Odorous Gases in a Bathroom

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The sound of ripping cloth(really bad constipation!). Come on kids we need some creative input here.

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Jon | May 31, 2006 8:51 PM
My funny comment... I have none. This is awesome. Why is it just NOW being pantented? This can also have various other used, such as how bad breath is, whether or not someone wiped their ass, or if they just haven't showered in a while.

Arrows | Jan 15, 2006 8:22 PM
That fecking kicks arse big style , ive spent years in my shed , and Bog and must have so nearly thought of that , but not quite . There in lies the rub . Top idea , id like 5000 in time for next xmas lol farters ill join the mailing list :)

Mike Garrett | Jan 3, 2006 3:32 PM
The parrot, a norwegian blue, is pinin' for the fiords, and so he doesn't talk? Clearly this is fraud, I can prove conclusively that the parrot, in fact, drives a Violkswagen and his wife's car is a used Chievrolet. I contend that this parrot has in fact gone to join the choir invisible, he 's pushing up daisies, he is taking an extended dirt nap, ladies and gentlemen of the jury, he is a Late Parrot. Where are the x generation's John Cleeses? Writing lame gags and one liners for Howie Mandel. God help us!,(to laugh at ourselves.).

tiny | Dec 16, 2005 11:40 AM
Yep, it's quite normal to have a parrot cage in the bathroom. "He's not dead, he's pining for the outhouses of Norway."

JollyFatMan | Dec 1, 2005 9:27 PM
Cool idea for a Christmas present! Keep them coming..... JFM

Tampa Tom | Nov 28, 2005 4:47 PM
OK, Looks like my holiday shopping issues have been resolved. Let me check my list... Dad, check. Uncle Louey, Check.

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