Running into a stop sign while walking. Although the dumbest sounding one is hitting myself in the shin with a sledge hammer while trying to activate a seismic source... if you saw the source and how it's activated it would make a lot more sense.

One day my apartment door would not open. The final solution was my removing the hinge pins and the maintenance guys sledgehammering the door in. One of the guys missed the door and got his shin instead.

OTOH I won the annual "so stupid it must be true" award for missing work.

I can top that with sticking my finger in the water to see if it's close to boiling yet. (Yes.)

Rolling my ankle while jogging on a flat, even, and indoor surface.

Tore three ligaments.

Edited at 2013-03-18 04:37 pm (UTC)

This is similar to mine, i tripped over a flat, even indoor floor and broke my toe...while walking.

I love you.

i broke a toe in aikido class by dropping a beginner on it.

This made me laugh out load.

Breaking my nose by kicking myself in the face while stretching. Or re-breaking it while lying in bed with my laptop.
Breaking my ankle because I ran down the stairs.
That giant sliver I almost needed surgically removed from my ass because I scooched on a dock.

I have lots of dumb injury stories...

I wound up in the ER after dropping a guitar on my face....

Well, at least W22.02XA comes to mind. I'm sure I've done dumber things, i.e., any time I've injured myself the same way twice. Or three times.

ICD10CM R46.1 and R46.2.

I've told this story before, but I once broke my ankle on a ski trip... by slipping on ice in the parking lot.

That's not the dumb part, though. The dumb part is, after spending the first day of this 3-day group ski trip sitting in the condo with a bag of snow on my ankle, I tightened that boot extra tight and went skiing (carefully) on it. Didn't find out it had been broken until 3 weeks later; by that time it had pretty much healed.

shattered my ankle jumping out of a plane was up there. Actually it was the landing that did it.

I broke my toe. My middle toe. By running into a wall. I swear, I was aiming for the door.

bester burned his hand on lava while in Massachusetts. Apparently, geologists make that stuff in the lab. He dropped a bit on the floor and forgot to observe safety protocols when picking it up (read: tried to use his bare hand). Oops.

He should have been climbing on chairs and tables to avoid it. :-)

In 2005 I slipped on the only patch of ice on the front walkway and sprained my ankle, dropping my barely 3 month old son and he slid down 2 (shallow) steps as he fell out of my arms.
Then October of 2011 I fell at nearly the same location and broke my foot, but I stumbled on a small rock, not snow this time. This was right before I needed to travel to PHX and LAX in the same month.

I am very clumsy.

I jumped off a drum riser during a low-key blues set and hit my head on a low ceiling, causing myself a major head wound and lots and lots and lots of bleeding. No concussion, though.

I cut my finger in half lengthwise requiring 13 stitches and 10 years later I still can't feel that half of my finger.

I was cutting masking tape.

Dropping a very sharp knife and trying to catch it.

A common t-shirt amongst architecture students "Never try to catch a falling blade!"

I chipped a tooth while swimming. :)