I took my K Zilla on a field trip once.  I didn't tie it securely to my backpack so it fell off while I was climbing a rock.  My wife said I made the most horrible cry when I saw it dropped 7 meters down and the blade part landed on a rock first.  This impact was so big KZ was air born again and landed on its handle part for the second impact.

I thought this KZ was ruined but it was OK, though the part of leather sheath which took the first impact was flattened, as if it were a pile of PlayDoh just been thrown on the rock.

I am really happy Busse Combat Knives had made K Zilla so strong to suvive this kind of abuse.