A retired or pet Greyhound doesnt need a muzzle on in a public place. A box muzzle or 2 always come in handy if you keep dogs, but I see some poor mongrels got more tack on than horses with horrible nylon harness's cramping their shoulders aswell as a collar and a muzzle, poor b*****ds are over weight but still forced to wear coats in mild weather, and the majority are never off the lead.