OH Boy, another Confirmed case of the Highly Contagous, though Rarely FATAL( unless your Wife catches you buying more locomotives) O-Gauge Virus. Welcome to the Club of those afflicted with this virus. There is no KNOWN CURE, though the symptoms can usually be treated by purchasing assorted equipment. Some times during minor outbreaks a few trees, a freight car or a building or two might calm the outbreak, but in severe cases it may take several locomotives purchased over a period of time to treat.
Good Luck with about the most Enjoyable (Non) Medical Condition that one may be afflicted with.
Doug