With more than a billion items to deliver across the country this Christmas, it is perhaps not surprising that the occasional bit of tension creeps in at Royal Mail delivery offices towards the end of the night shift.
Despite the time of day, any such moments at the Stockport Delivery Office are more than matched by the occasional singing along to the latest chart hits playing over the airwaves, and even the odd threat to dance to them.
As we approach the busiest week this year with over 79m parcels set to be delivered – Read more on the BBC News site here