I am enjoying the responses, thanks you guys. Kairapup, I really appreciate your pointed reasoning for how you make decisions about healthy safe playmates for your little ones. What are ways you guys- especially those who feel only smaller playmates suit- avoid close interaction with the big dogs whilst preventing creating a neurotic dog? Do you use a carrier or a stroller? Do you feel leashed sniffs and hellos are safe? Do you pick your dog up- if you do, do they perceive the other dog as a threat? Do they want to say hi or do they not mind being disallowed to say hello? Does his happen at a park? Do you walk away? What about if you are visiting a family members house who has a less than ideal companion? Really enjoying the responses, thanks again!