We brought home a medium size dog this weekend from the SPCA. Dexter is a 8-12 month old Lab/Hound and is very friendly towards Emma, our 4-year old cat who has been the only pet for 2 years. Dexter has only been around her a few times that she's crept out but Emma has been in hiding since Saturday except for when Dexter has been crated (when we're asleep). She got up on the bed during the night so I know she was moving around. I moved her food to the countertop and showed her where it was. She has not eaten in 2 days. She is hiding in the closet, responds to my husband and I lovingly but won't come out. I'm worrried for her. Maybe we did it all wrong. She was playful and fun with a smaller dog that my parents have. I thought sure she'd be okay since Dexter isn't that big. Will she come around? What can I do? She could obviously have the upper hand if she felt threatened. She's got sharp claws and could easily kick Dexter's butt but I don't think she realizes that. I don't want to ruin her. When should I really worry? I need some advice. I am torn and upset. Thank you.