A wishing well is nothing more that a place to hope and dream. A token offering is given with the silly notion that the wish just might come true. But what happens when these wishes start to come true, on a regular basis?
Silk Armor? The Mongols wore silk undergarments under layers of leather armor. Why? Because silk is very strong. If an arrow hit them and made it through their armor, it would usually not have enough energy to puncture the silk. It could still enter their body but, because the silk would not break, the arrow's barbs could not do their work and the arrow could easily be removed leaving a relatively clean wound considering normal arrow wounds.