Once upon a time during a raging war, there was a chemist who invented a material that could stop bullets. It was so amazingly resistant and a very light, flexible material.
The chemist won a huge government contract to create armor for military vehicles, aircraft, ships and even uniforms. The material passed every test on the gun range. There didn't seem to be any shrapnel and nobody could find the fired bullets and bombs. They had to go somewhere but nobody found out where. It didn't matter because the tide of the war had turned and our side was winning the war.
One night several weeks later the chemist was startled awake by loud banging and crashing sounds. He ran down into his laboratory to find it in ruins and the material he invented in tatters, which it turns out only absorbed kinetic energy and kept it in temporary suspense.
The end.