For years, fans of the classic Christmas film Home Alone have been willing to forgive the colossal parenting blunder made by Kate and Peter McCallister. It’s only halfway through a flight spanning over 4,000 miles from their home that they realise they’ve left their eight year old son behind for the festive season.

This leaves him with the task of purchasing his own toothbrush and fending off burglars armed with a blowtorch and a firearm. However, accidents do occur.

It’s an easy mistake to…