I was suppose to fly to the grass runway at Forest Lake today, but the magnetos on the airplane were bad. So after taxing up to the runway, finding that the magnetos were too bad to fly, I turned the plane around, and taxied back to the hanger. As I was taxing by the airport tower, the tower guys came on the radio and said that someone was waving to us in the tower. Haha! The tower guys were waving, so Instructor Cheryl and I waved back. Best tower guys in the world!