Circus entertainment 2

Going to the circus on some occasions as a kid, I never really thought much about such things. Most kids seem to have the nature of being amused by pretty much anything. Then they become adults and gain (supposedly) some wisdom along the way. Circuses would probably be more ethical to enjoy if they would eliminate all the wild animal acts. But then again, that's half the circus, and nobody has yet thought of any replacement acts that would appropriately fill in the time slots.