Field Trip to the Zo

This kindergarten teacher was taking her class to the zoo for a field trip. They came to the cage for the zebra:TEACHER: Who can tell me what animal this is?JOHNNY: Well, it looks like a horse, has black and white stripes. Must be a zebra.TEACHER: Very good, Johnny.They come to the elephant.TEACHER: Class, who can tell me what animal this is?JANE: It has big feet, is very big and has a trunk. Is it an elephant?TEACHER: Very good, Jane.They come to the baboon cage.TEACHER: who can tell me what animal this is?No response.Finally Billy raised his hand reluctantly.TEACHER: OK. Billy, would you like to try?BILLY: Well, it has a big belly and has a lot of hair all over, and has a stupid look on his face… must be a truck driver.