Since I have read a few posts with people that have both cats and yorkies, I have to ask ..... does your cat suddenly think he is a yorkie?
Our cat Cocoa is always eating romeo & juliet's food (they eat Eukanuba little bites) and drinking their water. Also, when I am trying to train them (teach them to sit), and giving them a treat, she runs over meows and paws me until she gets a puppy treat too. Is it okay for her to be eating the dog food and treats? She also plays with their toys and tries to lay in their bed. She's just like a child.........It's like she's saying "Me too! Me too! Me too!" Anyone else notice this with their cat(s)?