Serious Eats - seriouseats.com

I've loved to cook since an early age. I remember back when I was still in elementary school, I decided to try to create one of my Dad's favorite pies, pecan pie, for his birthday. It was the first pie I'd ever made on my own, but it sounded pretty easy. Got the pie crust done, the filling was in and I spent oodles of time getting the pecans to look just right on top of the pie.

Halfway through the baking cycle, I smelled the most horrible smell and entered a completely smoke-filled kitchen. My Mom and Dad kicked in from there and got the "pie" out of the oven. When the smoke cleared, we realized what I had done. I had used a pie tin that had originally house a pie purchased from the bakery that HAD HOLES PUNCHED IN THE BOTTOM OF IT! All of the pecan pie filling (except the nuts) had seeped right through the crust and had become a lump of charcoal completely stuck to the bottom of the oven.

Let's add insult to injury -- this was before self-cleaning ovens were available. Nuff said.

Yes...it is horribly rude unless there is a medical condition (allergy, diabetes, etc.) or religious belief involved.