The only time I've gotten stitches not related to a surgery was when I was a wee lad. My mom used to use half of a broken set of garden shears, the big foot long scissors for trimming hedges, as seed planters. Push the blade in a few inches, rock it, drop a seed in, push soil down to cover.
I was maybe 4 or 5, so the memory is hazy, but I was helping plant corn in the garden. I must have hit a rock, so I lifted the shear up and went to plunge down. I ended up hitting the tendon rich area right above my left kneecap. Judging by the scar, it must have went in an inch or so. It's a wonder I didn't screw up the tendons in there.