I apologised and turned it inside out and thought that was the end of the matter.

Mr Nixon added He was stupid to wear the T shirt and he apologised at the time.

The Canadian commentator, whose professionalism has been widely praised after the mistake, owned up to his error once again in the hours after the event and apologised to viewers on Twitter.

But the 36 year old said he received an email from the chairman of governors later that evening asking him to meet with the head the next day, but he did not see the need after he had already apologised.