The toddler is recently displaying some worryingly teenage behaviour. As he is learning to express himself and test his boundaries, and our willpower, more and more we are noticing frequent acts of defiance. Playgroup is a nightmare. Hoards of similar toddleagers expected to play with a limited number of toys and, heaven forbid, SHARE them. It would appear a fierce territorial steak is rife in the average toddleager . Cries and wails of "Mine Mummy mine!" can be heard reverberating from every wall. Here are things the boy has recently declared to be HIS: My makeup My hair ...