In the Father Ted episode 'Think Fast, Father Ted', Ted told Dougal to shout out the number of the raffle ticket - 11.
When Ted called out the number, Dougal didn't shout "11"; so Ted lied that Dougal really said the number.
When he went up to Ted on the stage, he said "God Almighty, Dougal. What were you doing?" and he said "Sorry, Ted. I was looking at the ticket upside-down."
What did he mean it was upside-down? How can 11 be upside-down? When it's upside-down, it's still the same number.