The assistant looked at him and asked: "Are you Irish?"

"If I had asked you for Italian sausage, would you ask me if I was Italian?" demanded the Irishman indignantly.

"Or, if I asked for German Bratwurst, would you ask me if I was German?"

Then, warming to his theme, he went on:

"Or if I asked you for a kosher hot dog, would you ask me if I was Jewish?"

"Or, if I asked you for a taco, would you ask me if I was Mexican? Would ya? Would ya?"

The assistant said: "Well, no."

Suitably encouraged by the success of his logic, and pleased to strike a blow against the Irish stereotype, the Irishman steps it up a gear. "And if I asked you for frogs' legs, would you ask me if I was French?"

"What about Danish Bacon, would you ask me if I was Danish?"

"Well no, I probably wouldn't" conceded the assistant.

So, now bursting with righteous indignation, the Irishman says:

"Well, all right then, why did you ask me if I'm Irish just because I asked for Irish sausages?"

The assistant replied: "Because you're in Bunnings"