We had hot dogs last night and low and behold, I discovered two bottles of tomato stuff in our fridge, one was labeled as CATSUP and the other as KETCHUP. My wife suggested that the CATSUP had to be for cats and the KETCHUP for dogs because, well CATSUP is obvious and people with both cats and dogs already know that dogs are always trying to KETCH UP with cats. Any other ideas?