This I wrongly translated as "Don't wait for me, I'll stay". It is one of many posters in a campaign against bringing you beloved pet with you on a ride to the island (or another great spot, or just the highway), and then leave it behind. The proper translation is "Don't leave me"

You know the story how once all dogs from Istanbul were brought to one of the Islands, and then left to die? In a way it still happens, but differently.