A Wauwatosa resident says his neighbor was at home, resting and recovering from major heart surgery, when a car came plowing through the wall of that home Thursday morning. A contractor called in to make repairs estimates the damage at up to 100-thousand dollars.  The driver emerged unscathed and no one inside the house was hurt.  Crash investigators say it’s possible the accident was caused by a mechanical issue with the vehicle, which went out of control.