When I was real young and real dumb, mid 80's, I was punching out windshields of my hotwheels/matchbox cars with an alox SAK my dad had given me, (my brother had a matching one). It snapped shut on my finger and bit me deep!
I was too scared to tell my mom though;
A) that dad (who no longer lived woth us) gave me a knife.
B) that I was playing with it, because she would've without doubt taken me to the hospital, (I probably should have gotten a couple stitches),
So it was summer vacation, small city kid with a single mom, I used tape and paper towels and avoided my mom the best I could for like a week before I could use a regular bandaid wrap to hide it.
All through my teenage years there was one spot on my thumb that when I grabbed something just right it would hit a nerve... That knife taught me how sharp a knife could be, and also that knives are not toys to be played with.
Also a few years later, I was at my oldest brothers place, and he had a nice, new, kitchen knife set, (i had only ever encountered typical cheapest quality stuff growing up), and he was an established hairdresser who also did all your typical barber stuff where he worked, so he respected a sharp blade and kept his as such. Anyways, I went to slice a bagel, expecting at least a bit of resistance, when it just lasered through the bagel like water and sliced my index finger deep.
We're talking mid 90's now and I'm a teenager getting into all sorts of trouble, I just butterfly bandaid'd it up, gauze and medical tape, and went about my way. Took a good while to heal, another one that probably should've got a couple stitches. That one reminded me how sharp a good knide can be, and taught me to "keep my body parts out of the way of the blade" was a rule for a reason... And to have more respect for kitchen knives as still being actual real knives. Not to take them for granted.
They both influenced my respect for sharp bladed instruments, specifically knives.