I'm not worried about someone being bitten in a break-in. If they break in they deserve to be bitten. And IMO, just walking into someone's (locked, I'm assuming) yard is breaking in.
I would likely have a bell outside my gate with a sign advising people that dogs are on the premisis, and to please ring the bell. I wouldn't want people coming in and out of my yard if I left my dogs in there.
I would likely have a bell outside my gate with a sign advising people that dogs are on the premisis, and to please ring the bell. I wouldn't want people coming in and out of my yard if I left my dogs in there.