The Knee Defender

A snail has its shell

A tiger its teeth

A Samurai his sword

But the knee

That articulation

Capable of taking us 

up the Empire State Building or

Across the English Channel

The Knee, hath no defence. 

In life your knee can be in deep trouble, so much you 

get down on your knees

And when you're not well 

It's the Doctor's hammer that will fell

Slamming the knee cap

On a pretence to test the jerk

A sensitive galvanic reaction

That would lend envy to any stiff frog

Finally, a knee Tsar, a knight, has been invented

The Knee Defender has been crowned

Take it on an airplane

Whip it out at 30,000 feet

Clip it to your tray

Wait - don't grimace until the passenger in front makes a foray

To recline, I said recline, his stuffy airplane seat

And then your knee will feel like it's in a hotel suite!

Some of you hear the Knee Defender may be banned

Canned from airspace

Where except for first class, passenger proximity is the rule of the land

Fret not world travellers, the Perdu chicken company has made an offer to purchases 2.7 million knee defenders

On a trail basis: Indeed by clipping chicken legs together one saves 25% of space, translating into an 

additional 15,000 chickens per 3000 square feet of coop.

Studies are underway to identify other applications that the Knee Defender may have.