I totally understand where your coming from Emily. Roxey has been quite the digger in the 2 years we've had her And Huney...she holds her own too
Yep, we've had the mazes through our yard from moles, but we've also had just random digging throughout the yard (holes that are almost a foot deep )
We've found that poo in the hole really works (for us). I hope it works for you too!