I think it's important to keep your personal life to yourself as much as you can. It protects your sanity and you need to have boundaries. And it helps that enchantment of watching an actor. If you know someone's favourite colour or what they like to do on a Sunday, you won't fall for the character
“I believe sanity and realism can be restored to the teaching of Mathematical Statistics most easily and directly by entrusting such teaching largely to men and women who have had personal experience of research in the Natural Sciences.”
“A man can do what he ought to do; and when he says he cannot, it is because he will not.”