Siri Palin for iPhone; She avoids answering questions she doesn't want to. At times she goes rogue and just does what she wants with no regard to what you asked of her.
"Siri, text mom and tell her the Rochester burger joint was delicious!"
Siri: "Hey Tom, Ben Roethlisberger was pointy and conspicuous" Do you want me to send it?
"Dammit Siri Palin, stop going rogue!"