Or buy a dog whistle. It's over the road, in a block of flats. Every morning, it's on the balcony barking for an hour. Every evening, the same. It's driving me nuts. I don't know the door number as you can't access the flats unless you're a resident. So I can't report it. Why would you get a dog if you live in a flat and aren't going to do anything about its barking?