I didn't make this up myself I read it somewhere and tried it... Does you dog dig holes? Place in the hole one of their own bowel movements, fill the hole back up with soil and tamp it down. This will eliminate them from digging in this spot again. Not to say they won't dig anymore holes, but they won't keep digging in this spot "making their way to China or the USA". Doggie holes can be down right dangerous if you aren't expecting one in the lawn.