Polish Sausage...

Via my mom:

So, the customer asked, "In what aisle could I find the Polish sausage?"

The clerk looks at him and says, "Are you Polish?"

The guy (clearly offended) says, "Well, yes I am. But let me ask you something. If I had asked for Italian sausage, would you ask me if I was Italian? Or if I had asked for German Bratwurst, would you ask me if I was German? Or if I asked for a kosher hot dog would you ask me if I was Jewish? Or if I had asked for a Taco, would you ask if I was Mexican?' If I asked for some Irish whiskey, would you ask if I was Irish?"

The clerk says, "Well, no, I probably wouldn't!"

With deep self-righteous indignation, the guy says, "Well then, why did you ask me if I'm Polish because I asked for Polish sausage?"

The clerk replied, "Because you're in Home Depot."