Sometimes all you need is a Scientist to really screw things up!!
(This is a true story)
Scientists at Rolls Royce were once asked to build a gun, specifically to launch dead chickens at the windshields of airliners, and military jets. Its purpose was to test the strength of the windshields by simulating the frequent incidents of high-speed collisions with airborne fowl. The gun was duly made and it proved to be a big success in aiding the development of stronger aircraft windshields.
American engineers heard about the gun and were eager to test it on the windshields of their new high-speed trains. Arrangements were therefore made to send a gun to the American engineers.
But when the gun was fired, the engineers were shocked to witness the chicken blast out of the barrel, crash straight through the supposedly shatterproof windshield, smashing it to smithereens, continue on through the control console, snap the driver's seat back-rest in two and finally embed itself in the back wall of the cabin.
The horrified Americans sent Rolls Royce data and photographs of the disastrous results of the experiment, along with full design details of the windshield and begged the British scientists for suggestions.
Rolls Royce responded with a simple two-line memo:
"The gun is working perfectly - First defrost the chicken!"