Chocolate is what poisons dogs. There’s just a much higher concentration of it in dark chocolate than milk chocolate. Too much milk chocolate can still kill a dog, and “too much” isn’t even all that much. 8 ounces of milk chocolate for a 30 pound dog is enough to be concerned about.

I remember making that trip in the 90s, but I was too drunk at the border to find my driver’s license in my pocket so they just waved me through anyway. Those were different times.