Nope my dogs stop at every fence, but with the new garmin I just drive up to them pick em up and set em down on the other side.......

j/k
Yes they cross fences but they do not mess with the fence they are kenneled in. The fece around my property doesn't bother them and they will run up to it without hesitation but when in their kennel they leave the fence alone and wont dig at the fence. I hammer in small rebar a few inches away from the fence and attach my insulators close to the ground and it will stop just about any dog that wants to dig out.