its the Jimmy/Cindy brain mix up all over again. Which Mina has the "Extreme dislike of girls who dislike boys who dislike girls who dislike show-offy boys..."
That is way too much physical strength for a rice cooker. Happens all the time in movies when robots fight humanity. My maid bot doesn't need to be able to lift a truck.
Does not exist.... Maybe he/she is already dead or he/she used a different name when he/she purchased Mina. He/she is a programmer thou, He/she might have messed around with her programming and maybe it's illegal to do that.