Young did not pass the puddle and so’ it did not let the hand of their mum's during landing. At the same time the mother tried to keep the air in order not to fall into the mud. Vertical time children became curve to the mother's legs, which ultimately put tripping itself thus found in the air with two options: fall upon the young or to leave with his head in front. Instinctively chose the second and funny effect splits laughing. Fortunately.