here's a question for you. recently my dogs have joined together in a concerted effort to dig a hole. Currently this is about 75cm square and about 35-40 cm deep. The question is this??? where does the the dirt go? I cannot find enough to fill half a bucket let alone to start filling the void. Are dogs so enthuiastic in the digging that the dirt exceeds light speed and travels to another realm or just that it travels so far as to be out of human comprehension.