In early August, the would be Prime Minister Jeremy Corbyn was photographed sitting on the floor of a Virgin Train to Newcastle after claiming it was "ram packed".  He went on to say that "this is a problem many passengers face every day".

Virgin Trains' press team has, rather embarrassingly, called him out, stating that he deliberately walked by empty seats.  

It gets worse.  After making his film, and presumably his political point, he got up and sat down in one of the empty seats. 

Virgin Trains back their claims with what looks like pretty compelling in-train CCTV footage. 

In choosing to sit on the floor, Corbyn has walked into a PR disaster. 

As any PR will tell you, off the record of course, do not let the facts stand in the way of a good story.  But there has to be some element of truth buried somewhere. 

By all means stretch the truth (surely not from our politicians), but make sure you cannot get called out.