Irish sausages

So this bloke goes into a shop and asks for Irish sausages.

The Assistant looked at him and asked “Are you Irish?”

“If I asked you for Italian sausage, would you have asked me if I was Italian?
Or, if I asked for German Bratwurst, would you have asked me if I was German?
Or if I asked for kosher hot dog, would you have asked me if I was Jewish?
Or, if I asked for Taco, would you have asked if I was Mexican?

The assistant says, “Well no”.

“And if I asked you for Bourbon Whiskey, would you ask if I was American? What about Danish Bacon, would you ask me if I was Danish?”

“Well probably I wouldn’t “

With self-indignation, the man says, “well, all right then, why did you ask me if I’m Irish, just because I asked for Irish Sausage?”
The assistant replies,”Because you are in Bunnings”.