...respond by saying "Yeah, and some dogs barkandbarkandbarkandbarkandbark."
Feel free to add as many "andbark" repetitions as you need to get your point across. I guarantee that you won't need very many. I also guarantee that anyone listening will beg you to stop the chronic barking imitation.
At that point, you say "Welcome to my world."
The Department of Shameless Self-Promotion. Silence is golden. And so are the tee shirts and bumper stickers in my QuietBarkingDogs store.