Google HQ is officially a "dog friendly" campus, and dogs are welcome in the engineering offices, where some bark. Some owners respond by taking their dogs outside immediately, but others just shush their pet, which of course resumes barking half a minute later.

Polite requests to take it away are met with "Oh, she's usually not like this, I don't know what's wrong, I'm sure she'll be quiet now..." And nobody wants to be "that guy" by telling the owners to take their dog and GTFO. So the dogs end up staying.