I talk out loud to myself sometimes, just a kind of stream of conscious of what I'm doing. I also whistle tunes all the time. I'll be in the grocery store whistling some happy tune like Black Sabbath's "War Pigs", and people will look at me quizzically. I have music playing in my head a lot, too- replays of music I have heard. When one of my friends pointed out that I was talking out loud (not loudly), I told him that I wanted intelligent conversation. Kind of freaked him out. I guess his experiences as a police officer puts him on guard with people who are verbalizing what they think about. I'm not crazy though, because I have money. That makes me "eccentric". 
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.
