I just opened a can of Castor & Pollux Lamb, Veg and and Rice I think it was, and OMG! First when I popped the top it sounded like opening a coke. And then the horrible stench came. I got the phone and called the number right away, while I was talking though the stuff was starting to puff and bubble out of the can. Anyway, the customer servise was great, no complaints there. I just wanted to give everyone a heads ups. She said on the phone it sounded like the seal was broken and it had ferminated. I looked the can over and couldn't see any breaks or dents. I had ds bury it in the backyard, I didn't want the chickens to get into it.