My little brother (6 at the time) rode his bike in to mine (I was going 15 he was 20-25 mph, maybe) going don a steep hill... He hit my derailer guard (thank god for the mountain bike innovation), and flipped off, literly, and slid about 10 feet down the side of the steep hill. Had about a dozen stiched in his chin. What made it worse was I had to pull him up, beauce My mom didn't want to climb down the hill. Fourtinatly, I skinned my knee a week earlier, and had a few dozen band-aids handy to help stop the bleeding.
And then, about 2 months ago, I cleanly sliced the tipp of my left middle finger off, including some of the nail, with a brand new x-acto knif in School. My mom came, and she was asking me weather I really needed to go to the hospitable, or wether she should just put a band-aid on it, and throw the tip away. I forced her to take me to the hospitable, and I got 9 stiches, 3 going through the fingernail.
I have also found that the best way to get in and out of the Er quickly is have a big injury.