Yes, lots of people say they feed their dogs choc and they're fine but a dog can eat choc for years with no ill effect and then suddenly die from it...like the bulldog I wrote about above.

I just don't think it is worth the risk. It is like people taking hard drugs. Some people can take them for years and not die and another person can try it once and drop dead...then others can have taken them for years and then it suddenly kill them...