So was walking today with a friend and her dog who told of how another dog that she goes walking with is obsessed with her dog, to the point where it eats his pooh... The other day it actually ate it as he was doing it. Apart from being fucking grim, what is the reason for this? Are there are any dog psychologists on MN? I know it's a rather vile topic, but I am genuinely interested as to what this is all about.