Because all of the regular cages were filled, a young orangutan in the animal hospital was being housed temporarily in a free-standing cage in the hallway, He seemed to enjoy that location from which he could keep an eye on all of the activity going on around him. His cage was across the hall from the entrance to the cage area, so everyone coming and going had to pass right by his cage.
Whenever keepers entered the cage area they would stop to put on one of the sets of yellow overalls that were hanging next to the door. The orang seemed to find this particularly interesting.
One day keepers attempting to enter the cage area found the door blocked from the inside. They forced the door open far enough to squeeze through and found the orang cage wedged into the corner behind the door.
By rocking back and forth the ape had managed to move the cage completely across the hall. Keepers were puzzled, however, as to why he would want to do such a thing. Puzzled, that is, until they looked inside the cage. There sat the orang, perfectly contented, wearing a pair of yellow overalls.