The smiling children giggled as they patted the young goat on its head and tickled it behind the ears. Some of the more boisterous ones tried to clamber onto the animal's back but were soon shaken off with a quick wiggle of its bottom. It could have been a happy scene from a family zoo anywhere in the world but for what happened next. A man hoisted up the goat and nonchalantly threw it over a wall into a pit full of hungry lions. The poor goat tried to run for its life, but it didn't stand a chance. The...