Lucas just came in from outside with his muzzle covered in dirt. For some reason instead of digging and burrying his things like a normal dog would he just pushes the top soil over it with his muzzle. I keep stepping on his toys and find there is barely any dirt over them, there is just enough to hide the toy (even though you can see the little mounds). I find that really weird......any Idea's as to why he wouldn't just dig a hole like a normal dog would? Not saying it's a problem, but I find it weird.