You don’t mess around with a gigantic brown bear like Caesar when she’s due a routine health check. I remember only too well her rescue some four years ago when she bounced violently in her rusting cage on the bear farm in Tianjin and I thought she would crash through. Wearing a grotesque, painful full-metal jacket (see bottom photo), which secured a metal box and crude latex catheter that snaked itself into her gall bladder, Caesar was understandably a very unhappy bear.