Pass scrub_data by default, see response from DO here: https://www.digitalocean.com/blog

library/cloud/digital_ocean

@@ -221,7 +221,7 @@ class Droplet(JsonfyMixIn):
             raise TimeoutError('Wait for droplet running timeout', self.id)
 
     def destroy(self):
-        return self.manager.destroy_droplet(self.id)
+        return self.manager.destroy_droplet(self.id, scrub_data=True)
 
     @classmethod
     def setup(cls, client_id, api_key):