O'Hare Gets Pet Potty Zone, With Fake Fire Hydrants Insert 'gone to the dogs' joke here By Newser Editors and Wire Services Posted Oct 21, 2015 10:11 AM CDT 8 comments Comments In this 2013 file photo, travelers walk through Terminal 3 at O'Hare International Airport in Chicago. (AP Photo/Nam Y. Huh, File) (Newser) – Chicago's O'Hare International Airport has opened an indoor space, complete with artificial grass and miniature fire hydrants, for pets and service animals to do their business. In particular, the addition will make it easier for travelers with disabilities who will no longer have to go back out through security for their service animals to use the existing outdoor pet facilities. The pet relief room is located past security checkpoints in the rotunda area of Terminal 3. Pop-up sprinklers wash away liquid waste into a drain, and plastic bags are available for cleanup.