What I don't understand is why the cats start salivating when they hear the can opener when I don't even GIVE them canned food Sometimes I fix them special soft food from the stove (chicken stuff or liver etc) but really! I open a can and they come running from all over.. I swear they can even be outside and I open a can and there's a cat, right in the kitchen window Well maybe I will give them the tuna fish juz out of a can but that's only occasionally.