Dallas Animal Services to celebrate Dogust on Friday. TIL that if you don’t know your dog’s birthday, you celebrate in Dogust. This intel comes from Dallas Animal Services, which will hold a birthday party for shelter dogs on Friday evening. “Dogust is all about celebrating our shelter dogs and bringing the community together,” DAS foster and volunteer program manager Nashla Kalifa says. Photo of Loretta, our best good girl and DAS alumna who believes 70 pounds still qualifies as a lap dog, below.