I think I'm sharing your dog woes. Tess ate 8 massive chocolate chip, nut and raisin cookies while we were in bed last night. I stupidly left them on the couch and didn't even think that she might eat them. I leave food lying about all the time and she doesn't touch it unless she's given it. Chocolate is very bad for dogs though and although there wasn't much chocolate in them, she's been very subdued today. Not sure if I should take her to the vet or not, they charge £50 for a consultation.