Haha. 
When I still lived at home (between army and university) I wanted to heat up some sausages. Put them in a pot on the stove, set it to full power and went back into my room for a minute. There I became engrossed in the MMORPG I was playing and I forgot that I was hungry and had food cooking. About 4 hours later my little sister came home from a party and noticed a weird smell in the hallway. When she opened the kitchen door, she couldn't see for all the smoke. Took us hours to air it all out, the pot contained only a black, hard brick and had to be thrown away. We had to wash everything in the kitchen three times and had to renovate it before the last of the smell was gone.
Even a decade later they remind me of that incident when I mention that I am cooking... 
Nice.
My brother did something similar when we were in high school. He had trapped a turtle and wanted to pan-fry it, so he breaded it and started frying it, and of course he loves garlic so he used garlic olive oil with some extra minced garlic. Then he decides he needs to leave for some reason. To this day, I don't know how you walk away from something you are pan frying. It's not like something you're baking in the stove for 25 minutes or so. It needs to be turned so it cooks evenly.
Anyway, end result is that I'm out in the driveway shooting hoops and come back inside to a house that is filled with smoke and the most awful smell ever. Picture intense garlic mixed with smoke, burned breadcrumbs, and overwhelmingly fishy turtle smell. I just turned off the stove, opened all the windows, put the dog outside, said "FU - enjoy!" to the cats, and went back outside to play more basketball. It still reeked when I went to bed that night.