By Lucy Marshall A horror ’29-hour’ flight has left passengers reeling as an upset child wreaked havoc for the entire journey. Flying can be nerve-wracking at times and being stuck in a cramped seat or far away from people you are travelling with can make things even more uncomfortable. While it is not easy flying with children, sitting near a screaming or restless child is tough. Now one man is insisting there should be the option of child-free flights after his horrifying journey – and others agree with him. Henry Beasley, one half of New Zealand-based music duo Balu Brigada, had to endure w…