My dogs have driven theirs back across line and sometimes crossed fence while doing it. Based on law as I'm really coming to know it, my position is not weakened by my dogs going over property line so long as they do no damage which is same situation my neighbor has with dogs simply coming over. I am still learning. next effort will likely be to approach county commission to appeal for a county rule change. Where I'm weakened is my ability to protect my dogs from having revenge taken out on them by neighbors.
My inability to get law enforcement to deal with dogs chasing my stock while on my property is particularly aggravating. We must all remember my area is under state of Missouri and Callaway County rules, not those of somewhere else.