Although, I once bought a pork butt, and it smelled, which I chalked up to cryo funk. It stopped stinking after a few minutes, so I cooked it. When I pulled the bone, it was horrific. Sooo, I took it back to the butcher. He immediately got me a new butt, plus, added a little something. Then he took a whiff, said it smelled terrific to him. I told him it was not terrific smelling (in my head, I am now wondering about this guys nose). He asks if I mind if he keeps it. Then he pops a chunk into his mouth and proclaims it to be terrific. I was horrified and told him that I am certain it is spoiled. He says he would never argue with me, but, he just thinks it is delicious. Bearing in mind, he replaced the meat, before even smelling the returned item, I figured it was his business. I warned him. The next time I wandered in there, he said he ate the whole pack, his family loved it.