Executing the 'cough' to get two individuals nattering at the self-service checkout to move along.

Queuing up at Tescos for the self-service checkout, two teens are in front of me doing the 'post bag packing after scanning everything maneuver' before deciding to have a chat in front of two checkouts. Frustratingly upsetting myself forcing out the 'cough', both turned around and quickly hurried away. Far too much confrontation for myself ~