Till Death Do Us Part

Richard Schiff and Sheila Kelley playing Harper Dearing and his ex-wife, respectively, are married in real life.

Abby states that the source of the equine jawbone is either a "Thoroughbred Morgan or an Anglo-Arabian, both very common in racing circles". Not true. Thoroughbreds are the most common racehorses, though Arabians are also used for racing. A Thoroughbred Morgan would more correctly be called a purebred Morgan, since Thoroughbred is a distinct breed; Morgans aren't commonly seen as racehorses. Nor are Anglo-Arabians, as they are a cross between Arabians and Thoroughbreds.

References Peanuts Motion Comics (2008)