There was an English man, Irish man And a Scottish man who all wanted to get into the RAF.So the English man went up to the Sargeant and asked him how to get in the RAF so the Sargeant told him you had to go blow up a building without anyone seeing him.So that night he went to blow up a building and he went up to the Sargeant and said 'I've blown up a building without anyone seeing me and Sargeant said 'How many letters in the alphabet' and he replied '26' so the Sargeant said 'right your in' and the next day the Scottish man did the same and replied with 26 so he was in too.And the day after the Irish man went and did the same but replied with 24 so the sargeant said 'You must be bonkers cause theres 26' but the Irish man said 'You must be bonkers because I've just blown down B & Q!'