Ignoring the signs
As we said, Katie was not a bad person, but she could be selfish at times and very careless. Whenever she would stay over at John’s place, she would leave random objects all around the house for John to trip over. To add to that, she would leave the stove on and even set some things on fire by accident.
John took notice of some of these things but thought that she was just a little bit clumsy. He had no idea that her carelessness was happening all of the time and it was just a matter of when someone was going to get seriously injured as a result. But would Katie change her ways?