Mouse traps only worked for a week or so before he started gingerly digging around them, then a couple nights ago he completely emptied one of the hop holes again. I had dumped an entire bottle of Vietnamese/Thai (not sure) hot chili sauce on the holes a couple days prior. Not a small bottle either, probably around a litre. Nothing seems to bother this dog.
He's now a year old and when we got him he was 8 weeks. The SPCA said he was a Rottweiler, but I think they were high. He has some german shepherd in him, probably some lab, and definitely a hound of some type. If you google "black and tan coonhound" he looks exactly like one of them, except his ears aren't as long/droopy. He's around 50kg now; his back comes up to around my crotch/waist and I have a 36" inseam. He's a big guy.
We walk him nearly every day - only rain prevents us from our long walks. Our neighbourhood has a network of very well maintained trails along the ravines (we're situated on a triangle of land bounded on two sides by two different creeks), and we really enjoy exploring the bush/hills with the dogs. Our last walk was around 2 hours and by the end my wife and I were dragging the dogs because we had worn them out pretty well. We were dragging the kids too, but that's beside the point. When we leave on a walk, he always makes me laugh because he reminds me of the big stupid foxhound in the bugs bunny cartoon ("we're gonna catch a fox and cut his tail off!") because he almost trots with his nose on the ground, tail held high. The last time we went camping, our oldest went down to the lake to cast from shore for a while. Some time later we cut the dog loose and said "go find Alexandra!" and he put his nose down and just ran. Went straight to her without looking up.
His digging is definitely scent related - I don't think he digs out of boredom. He definitely smells something and that's what spurs him to dig. If he's bored he eats trees. Really. We have a crabapple tree in the backyard (we think - not exactly sure what it is yet as we've only been in the house for 4 months now) and he's slowly snapping off every branch he can reach, then eating them. Only that tree though. The others he leaves alone. Again, must be the smell. The old owners left behind a little bit of firewood, which he had great fun carrying around the back yard. Not small logs either - big heavy ones. He can carry logs that my kids would have trouble lifting.
But this is all a moot point because I think the hops are dead now anyway. However, I still need to break him of the digging habit. What I'm now considering is a home-made "porcupine". Several small sheets of plywood with a liberal number of nails sticking up to cover the holes where the hops were buried. The sheets will then be secured to the ground with tent pegs.
Actually, in a way, I'm kind of enjoying this chess game. Finding a technique that will stop his digging gives me another hobby.
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)