Karim Nabbach said: "We put up posters for an offer for men's hair cuts through the month of April. Obviously in the current news there has been this story that North Korean men are only allowed one haircut.
"We didn't realise but the North Korean embassy is a 10-minute walk from the salon. The next day we had North Korean officials pop into the salon asking to speak to the manager.
"He said 'listen this isn't North Korea, this is England, we live in a democracy so I'm afraid you're going to have to get out of my salon'."