A little kid gets on a city bus and sits right behind the driver and starts yelling, "If my dad was a bull and my mom a cow I'd be a little bull."
The driver starts getting mad at the kid, who continues. "If my dad was an elephant and my mom a girl elephant I would be a little elephant."
The kid goes on with several animals until the bus driver gets angry and yells back at the kid, "What if your dad was a drunk and your mom was a prostitute?!"
The kid grins and yells back, "I would be a bus driver!"
