One of the worst things I've ever seen was the next door neighbor'* dumba$$ dog eating
a skunk she'd killed a few days before!
Of course, this was even worse:
We'd started to wonder what the smell out by my parent'* creek-side patio. Turns out it was a dead deer stuck in a log jam.
We had to clear the carcass out of the creek to get rid of the smell so we dug a hole up on the bank, and towed the carcass out with the tractor., then buried it.
The last picture was taken about two seconds before the carcass rolled over in the logjam and exposed a huge hole in its stomach. I had to rope it'* head and hold the antlers out where they wouldn't tangle in the sticks. Oh, god, that was the worst thing I've EVER smelled.