because this is the craziest thing I have heard from a trainer. I also have heard that this doesn't work very well. The other trainer at my store was training two new trainers and they had questions from customers about how to stop dogs from digging. The other trainer stated "Put poop in all the holes. It will stop them. Digging is not a natural behavior for dogs so they will stop when they realize that everywhere they dig is poop." I just about bust out laughing. She has been "training for 20 years". I felt like saying....umm Terriers!!! When people ask me about dogs who dig I suggest a kiddie pool or designated digging area where you hide treats and toys. I also say that they can put that "Repel" stuff, the crystals where they do not want the dog to dig. Any other ideas?