I know the love and adornment that comes when one first acquires a snake -but as many have said, it really does take time and trust for them to become more secure and less head shy.
I agree 100% with the person who said that some snakes can become less head shy. That is true; I have personally experienced this with my 17 year old BP Nico. However, as a general rule, I would not attempt to blend the lives of two species of animals that would not naturally coexist in nature – e.g. reptiles and our furry companions.
I just think that a good understanding of snakes and companion animals will dictate that some pets should not intermingle. We have a reptile house, and no fur is allowed, so for us, this is not a quandarie that we would find ourselves in.