My dog keeps digging under the rear fence to get into the neighbour's yard. I've thought about investing in those kits with the electronic collar but the other part of the problem is that the neighbour's dog is just as bad and I catch him digging through to my yard.
I take my dog for regular walks so he doesn't get too bored, and the yard is fairly large (25m X 15m) but I know that the neighbour's dog doesn't get any exercise at all.
I've tried filling the holes with dog poo, bricks, rocks and even using bags of quick-set concrete but the dogs just dig through or around the obstacle and with about 20m of property overlapping I'm sick of back-filling holes after they've been created.
Is there anything I can do to stop this? Its been getting worse since the neighbour's dog worked out that if he digs through to my yard he can then jump over my front gate and is free to roam the street...