Well, he's my boss. And he's a human being. I'd want to be treated the same.
My best friend's known me since I was ten. He's pulled bullets out of me and stitched me with dental floss, and the one time I was in jail overnight was his fault. I'm pretty sure he exists only to annoy me, but he's loyal as hell. Someone's gotta look out for the guy, and that'd be me. So yeah, I butt my nose into his private life a bit more.