I saw a 4.5 inch yellow handled Case, which was not a flimsy knife and the most common knife around in the 70's, after it had been involved in bar fight. Unbelievable what it came out looking like. The knife was destroyed with it's blade bent sideways past 90 degrees and caked with black blood, a grisly testament at what a knife may face as a survival/defense weapon. I would say it went through a real world destruction test.