Caleo
PS Pasqual, my son is retired and was walking with his friend in a country park when I rang.
I may say I am good in my own company and I like to act for myself whenever I can. I seldom ask for advice. I feel this son does not quite understand questions about ongoing chronic pain relief for a dog with early -stage terminal cancer. I don't know enough which us why I need to consult the vet ,who happens to be Romanian. Son is good with foreign accents.
However, seldom you ask for advice and however good you are at managing for yourself, you are actually not doing either vis à vis your son in this instance. You are asking him to talk on your behalf with your vet because you find the man difficult to understand, due to his accent.
Why should your son accede to this request? He may feel that a dog with terminal cancer should not be treated, but should be put to sleep, which would be my attitude. He may not find the vet easy to talk to, and your son cannot make the decisions that only you could or should make.
You say he was with a friend when you phoned him, good enough reason to be short with you.
Why don't you just find a vet you can understand?