I can assure you we are in no way "precious" where feeding or anything else concerning our dogs is concerned. There is a great different between being precious and being a responsible pet owner. It't true that while a certain food may not hurt your pet, it may be deadly to someone else's animal and we are just not prepared take the chance with our dogs.
The most toxic nut is the Macademia nut. Cashews, Walnuts, and Almonds should all be avoided. Plain peanuts and pecans should be OK.
I would recommend not feeding your dog any nuts because of the high fat content. Too much fat at one time can overload the pancreas and lead to pancreatitis.