What's your favorite "walks into a bar" joke?

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54. An Englishman, an Irishman and a Scotsman walk into a pub

They each order and begin drinking a pint. First a fly lands in the Englishman's mug. He notices the fly and, with his sensibilities offended, pushes it away and orders another.

A few minutes later the Irishman notices a fly in his beer. He's also offended and picks out fly and casts it away but continues to drink.

A bit later on the Scotsman sees a fly in his beer. He picks out the fly and, while shaking it about his mug, begins yelling, "Spit it out ya bastard."