I would ask them ahead of time and then i would ask them if that's a straight answer.Who's the right person to contact when that happens - animal control or the sheriff?
They won't even show up when they are attacking people in the street around here. They sure show up when you fix it yourself though.
Some of these guys that aren't enforcing the law need to be voted out. All it would take is a ticket or two and the owners would fix it instead of putting everyone else in these unpleasant situations.