I have a couple burns on my right arm/hand from stupid cooking mistakes.
One of them involves a sort of funny story.
I remember going to a pizza place during an NECEG meet.
Pretty much all the people behind the counter had small bandages on their arms, close to the wrist.
I realized they were most likely due to burning themselves while reaching into the pizza ovens.
I thought to myself "geez, you'd think they all wouldn't burn themselves so much considering they work here all the time" something snide along those lines.
Not too long after that day, I'm at home cooking one of those frozen pizzas in my oven and when I reach in to pull it out, I pull up too fast and burn my arm on the stove

now that's kharma...
another time I had hot oil going so I could deep fry some tenders and fries. Like an idiot, I started throwing the food in from too high above the pot, so the hot oil splashed on me.
I have scars now from both those burns.
I have a bad habit of trying to rush while I cook to get it all done fast and on time while the ol' man sits in front of the tv.

"where's my food [censored]!"