rofl thats funny. Want to hear my rotten stink stories.
Well we ate pizza and had left over. Man put it in the oven. AFter about a week Peeeeuuuw. I bleached the trash can looked all over couldn’t find the source.
Fired up oven to cook one day. Opened the door and a pizza box was on fire. Yep found the smell. 
Chicken has a way worse smell tho. Poor you and buns. 
Now your buns are extremely clean. lol
OH and I had a cage full of birds finches parakeets and such. We kept getting a smell. I would take the cage to the porch and clean it real good vacuumed good and put anti stink stuff down.
To no avail.
One day I needed something out of the big living room closet. (place has lots of cool s torage space)
There it was. The bird seeds has gotten in the closet carper and were growing. The books in there were rotted. The washer has a leak and it went from the kitchen to the closet and we never knew it. 

Those were good books too dr. Suess and stuff. Dang had to throw them out.
But that chicken phew. Hopefully your buns won’t call out for new maid service