Detroit Zoo-- Detroit ,Michigan

On the back of this photo dated, 7/30/36 it says "A pair of docile Rhinoceroses at the Detroit Zoo where they were raised and taught their delicate table manners which they demonstrate daily as they take delicacies from the hands of visitors to the zoo. Thing's have changed have they not. What is the chance the public is going to be let down in a dry moat to feed rhino's today? Docile or otherwise. LOL