I recall being 8 or so and getting a huge (to me at the time) lockback knife with a 4 inch blade, from my grandpa; I took it everywhere with me, including school, church, the store, friends’ houses, etc. A couple weeks ago, a kid was suspended from my 9 year-old daughter’s school for bringing a pocketknife to class, and a note was sent out to the parents to reassure us that our kids are in a safe, respectful environment, yadda yadda.
My brother and I built a BMX track in a vacant field over a couple summers, with some wicked jumps - of course, no helmets. Aside from the inherent danger of the track, we had to watch out for rattlesnakes - but that’s why my bro brought his .22.
Speaking of his .22 - he decided to make blanks one day, by removing the bullets from some .22 cartridges, and replacing them with paper wadding, crimped down. He fired one on accident in our house (a very old converted barnhouse), and the wadding punched a hole clear through the plaster, lathing, and termite eaten clapboard - you could see daylight through it. About 6 inches from my head, since I was sitting across from him, against the wall at the time.
My grandpa had an ancient table saw - no safety mechanisms, just a table with a saw-blade in, and an old duct-taped toggle switch. My brother and I would make wooden swords with it, and beat the crap out of each other.
When I was a kid, my dad would catch air in his '63 Chevy pickup, when going over a raised railroad crossing, just to get a laugh out of me. I swear when we landed it felt like my spine was a couple inches shorter.
We used to make flamethrowers out of Aquanet cans. We also improvised napalm by mixing some kerosene with detergent - that crap was hard to put out.
Between the stunts, knives, guns, power tools, improvised ordnance, etc. it’s a miracle I survived my childhood.
Just so this doesn’t sound far too fun, and fail to dissuade the 12-year old in the OP, on the flip side, I got the crap beat out of me regularly. Got the belt from both my dad and grandpa on several ocassions - if I was really bad, my dad would threaten me with the buckle end, but he never followed through (wussy!).
When I was at Grandma’s, and I acted up (or as my Grandma would put it “gettin’ fussy”, as in “don’t go gettin’ fussy on me, or you gonna get it’!”), she’d make me go grab a branch from her apricot tree in the backyard, strip all the leaves off, and come back in. More often than not, I was so terrified when I got back in, that she’d let it slide, but she let me have it a couple times, and it was no freakin’ fun. Plus, if I got caught swearing - Lava soap went right in the mouth.
You kids don’t know how good you got it, with all these “child protection laws” and this concept of “human decency” in parenting.