Humans are not the only ones in the airport who need a restroom between flights. That's why Delta Airlines and Detroit Metropolitan Airport today opened the hub's first relief area for service animals.
Nicknamed "Central Bark" by some airport staff, the area has two grassy sections called "porch potties," with a sprinkler system to wash away waste. It even has a fake fire hydrant.
It means passengers in transit will not have to take their service dogs outside to do their business.