when i was going to college, i worked several part time jobs. i worked late, late nights driving cars back from an auction for a car dealer. i worked weekends in construction, mainly applying stoneclad flooring (a grueling messy business, also a lot of jackhammering/cement grinding), and afternoons at an auto body shop.
we had a picknick table in the locker room where we used to eat. there was an eastern european deli/meat shop just across the street, so id buy fresh potato bread or rye and sausage/salami/cold cuts every day to prepare some sandwiches. i had my knife - a gerber ats34 drop point gator - just sitting there on the table along with my sandwich supplies, while i worked in the shop. some d#$&wad used it and broke off about 1/4" of the tip, i assume using it as a screwdriver, and didnt even have the decency to let me know about it and apologise, or try to compensate me for it. they just closed the blade and put it back where it was. i was so incredibly pissed off when i noticed - i was fuming mad. it was probably my boss, who was too lazy to walk 15 steps and get a screwdriver from a tool chest and trashed a good knife instead.
there are knife collectors, who generally respect knives, and then theres everyone else - who treats them like $5 garbage. there were many other instances where people have trashed my knives (hammering on the spine with a rock, throwing a fillet knife into a tree and bending it, then trying to straighten it back by hammering on it with a rock using another round rock as an anvil, etc etc). my lesson learned, i will now just refuse outright to lend anyone my decent knives. even if they dont chip the blade, break the tip, etc in the least i will be in for a resharpening job as most will do stupid things such as cut rope with concrete underneath.
this is why i posted a thread in the knives wanted forum requesting people sell their old beaters to me. in a camping situation where i know there will be people constantly borrowing my knives i will have some beaters i can loan them and not worry about.
the funny thing is though, as a knife collector i have the utmost respect even for a 'cheap' knife such as a cold steel bushman. even though theyre only $14, i would never use the tip of one as a screwdriver... so my plan isnt foolproof: no matter what grungy old beater i loan them, i will still feel sorry for it, and i will cringe whenever i see them abusing them. id probably even feel bad if i saw a $5 knife being used as a screwdriver.
my mom's boyfriend has destroyed all of her kitchen knives by using their tips as a screwdriver, even though just one drawer away is a full set of screwdrivers. all of their tips are bent/chipped/broken off. some people just never learn, and should be sentenced to spend the rest of their lives using plastic cutlery.
cheers,
-gabriel