Saw a beautiful Beeman/Feinwerkbau spring-piston .177 in a pawn shop.  The salesman was showing it to a customer. "It's 125 dollars, Here's how you cock it", he said.  "Lots of power, just listen". POW, the guy dry-fired it.  
Well, I told the shop guys as nicely as I could how they shouldn't do that, but they probably thought they knew better.  
It's a frustrating world sometimes.