The dumbest way i injured my self would be cutting my self on the edge of my desk accidentally.

I was riding my bike and as I was coming into my driveway I hit the brakes as hard as I could and it cut up my leg.

i stepped on my dogs metal thing that is normally in the ground but it wasnt at the time and it cut my foot open and well long story short i was supposed to get stitches but by the time i went to the hospital it was to late...

I was at a construction site, i needed the toilet so I went into the portaloo and the portaloo doors are heavy and they shut VERY quickly!
Some how I managed to get my finger stuck and the door slammed shut on my finger!
I was about 2 inches away from splitting a nerve which would lead to me needing my finger amputated (cut off).
My finger was literally hanging off I could see the bone..
I walked all the way to first aid holding my finger in place so it won't drop off and keeping pressure onto it.
I obviously needed stitches and now I get a tingling feeling when I touch/bang the scar.

Damn man, sounds like it sucked. Hand and finger injuries seem like they'd be so inconvenient. With my old friend I didnt hear the end of it when he broke his hand.

Falling of my mountain bike and scraped all my face that was really bad

This was the other week but I went to get a glass off the shelf to get a drink a shelf and i dropped it onto the side and my brain registered that it was smashed but my eyes thought it was still falling so i tried to 'catch it mid air' even though it had already been smashed and sliced under my thumb, never seen so much blood it was everywhere lol.
No I wasnt high at the time either haah

Put a stapler to my head and pushed it.
Was bleeding for timeeee ahahha

I can recall doing many stupid things in my childhood. One of which was digging with a broken beer bottle. I wanted to dig a hole in the ground and I found that in the grass and started to dig with it.. Long story short I stuck it into the ground and pulled up with it and nearly sliced the thumb off. The bottle broke and dirt was everyone on my hand/thumb. I was screaming and pressed my thumb against my shirt and ran into the house and hid from my mom because I was scared. I ended up getting it stitched back together and I now have a scar almost entirely around my thumb on my left hand.

tl:dr: I was digging with a broken beer bottle, nearly cut my thumb off, had to get stitches.