Sometimes even a fosterer thinks it's normal for a rescue dog to protect its food, especially if there was a history of food deprivation, but in any case, those issues should be tested for (using an assess-a-hand or stick) before the dog is transferred to a foster home. If someone is going to run a rescue, they should be knowledgeable as well as good hearted. I do like the idea of treats from both hands, so long as you don't make any mistakes. That helps to change the dog's perception at least to your resident dog's presence being a predictor of food, rather than a competitor for it.
Regional Director for Massachusetts, International Positive Dog Training Association
Director, SeniorCare Pawsitive Connections Program
AKC CGC Evaluator #3669
Therapy Dogs, Inc. Tester/Observer
Sioux, CGC, TDInc.
Maska, CGC, TDInc.
Sequoyah, CGC
Fergie, Retired Lap Dog, Age 20 1/2
Dancer, CGC, TDInc. (1989-2006) #1 Heart Dog
In memory of Mike, please become an organ donor today.
"If you talk to the animals they will talk with you and you will know each other. If you do not talk to them you will not know them and what you do not know, you will fear. What one fears, one destroys." - Chief Dan George
"The fidelity of a dog is a precious gift demanding no less binding moral responsibilities than the friendship of a human being. The bond with a true dog is as lasting as the ties of this earth can ever be." ~ Konrad Lorenz