Glad to hear it! Not such a great way for your carpet to ring out the old and ring in the new, but at least Wentworth's OK, and that's all that matters! Happy New Year!
Ghilly
To be safe, I called the er vet and they told me to give him a few teaspoons of hydrogen peroxide to vomit...and sure enough, 20minutes later, a river of dark chocolate covered the floor. So he's fine! The carpet is not...but at least it doesn't smell like it looks :) It's a little Willy Wonka in here, but I'm happy he's okay.
Thanks so much for the response :)
Naturally he couldn't have eaten milk chocolate, which, while not good for dogs, is not as dangerous because it is lightened with the milk. He had to choose dark chocolates to eat. Dark chocolate is more dangerous than milk chocolate because there is a greater concentration of theobromine in it, but at least he didn't eat baking chocolate, which is very dangerous for them to eat.
The toxic dose of theobromine is 100mg/kg. For milk chocolate, 1 ounce per 1 pound of body weigh would be toxic. For semi-sweet chocolate (dark chocolate), 1 ounce per 3 pounds of body weight would be toxic. For baker's chocolate, 1 ounce per 9 pounds of body weight is the toxic dose. At 80 pounds, Wentworth would have to eat about 26 ounces to get a toxic dose.
In the event that he did eat this much, you need to watch for vomiting and diarrhea (which can happen with ANY type of stomach upset, so if he has either one of these, don't panic immediately), excitability (or more than normal), irritability, muscle tremors, increased urination, increased heart rate and general restlessness.
Just keep a close eye on him, chances are he will be just fine. He might have some minor stomach upset and some diarrhea, but an 80 pound dog should be OK.
Ghilly