Yes. And I use different voices, and each one has it's own persona. Which is a little strange now I come to think of it.
And I was having a full arguement with myself the other day over some choice, and walked round a corner, and walked into someone. Who asked me what I was doing, and without thinking i said "Do you mind, I'm in the middle of something?"
Then realised what I said.
I'm an idiot.