6 years old, iron that was on for 3 hours fell off the ironing board after i slid under it.
Landed on my face, giving the left half a third degree burn. rolled over screaming and it fell on my arm, burning it badly in the crotch of my arm.
Got rushed to the hospital and had a big bandage on my face for a few weeks. Then had some treatment thingy put on twice a day, which burned like crap, but eventually healed it up.
Don't have any scar on my face anymore but the burn on my arm is still vividly there from 10 years ago.