Dog owners howl over no-barking sign New “no excessive barking” signs have been posted at the park. Pet owners say the city must be barking mad for erecting a sign about excessive barking at a popular downtown dog park. Pet owners say the city must be barking mad for erecting a sign about excessive barking at a popular downtown dog park. Park users say the notice at Bonnycastle Dog Park on Assiniboine Avenue was recently installed by the city. Josh Bush, who takes his two dogs to the park several times a week, says it's "very rare" to see a dog barking in a way that could be deemed excessive.