I can't speak for the OP, but my garden is close to a dog-walking spot. (My garden borders the path that leads to a park.) The result is that my front hedge is badly affected. Ditto the plants that I used for underplanting.
As soon as I notice that some of the underplanting has started to sag, I wash it down with plain water - apparently the excess nitrogen in dog urine is too much for plants. I have to keep spraying the edge of the pavement in front of my hedge with lemon-scented disinfectant as a deterrent.
Strangely, when dog owners see me in the garden they suddenly gain the ability to pull their dogs away from my property so that they can widdle elsewhere. Ditto defecation. Yup, I get owners allowing their pooches to void their bowels on my driveway.
The other day, I was weeding and a dog on a long leash wandered up the driveway. I initially thought that it had just got away from its owner until the owner's head appeared around the corner, clocked me and hauled the mutt away. I then heard his wife's voice, followed by his reply of "I can't! She saw me!"
I don't mind dogs - in fact, I quite like them in spite of not being a dog owner myself - but I'm sick of selfish owners.
One chap now has 4 dogs all the same breed by the looks of them. The dogs are lovely and friendly and seem well trained...but he never has them on leads. He commands them to sit outside the local mini-market a few yards from my home. Inevitably, the dogs get distracted and start to wander off. (I swear that I saw the younger two exchanging glances before deciding to disobey their master one day.)
He then looks incredulously at any passers-by who tell them that they've just had to retrieve a couple of animals from the road.
I'm sure he prides himself in how well trained the beasts are: they do look cute - one carries his newspaper in its mouth; another carries his bag of rolls. The other two follow up the rear. This happens every morning. They're beautiful animals, but one day one or more is going to be run over and he'll blame the hapless motorist.