Joke about Irish Music

In Belfast, during the height of the recent Troubles, a furtive-looking man goes into a bar, carrying a large bag. The barman is immediately suspicious and asks him what he’s got in the bag. “Oh, nothing” replies the man. “I’m sorry” says the barman, “you’ll have to show me what you’ve got in the bag”. “Fair enough”, says the man, and opens the bag, revealing a large quantity of gelignite explosive. “Ah sure you’re ok then”, says the barman, “I thought for a moment you’d got a bodhran in there”.