In South Africa they have wild animals all over the place, and you can catch an elephant ride, swim with sharks and even pat a lion as long as it has eaten lunch first. Dams on their crocodile farms have sloping banks so the reptiles can climb out and catch a suntan while birds clean their teeth. Perhaps this sign means if the brakes fail on your wheelchair a smiling croc will be there to stop you and help you back up the bank. We’d prefer a volunteer tests the theory first. Can we put you down for it?