As plump Polish sausages sizzle on the grill, the Dog Haus counter man dips a ladle into the fryolator (whence commeth the French fried potatoes) to get some hot fat to pour over the grilling tube steaks. The grease helps give them a blackened, crisp skin; it also gives them a look of glistening, sinfully swollen avoirdupois. These are some of the most cumbrous Polish sausages in a city where Polish sausages, along with their all-beef brothers, hot dogs, are matters of serious culinary consideration. If you are a Polish sausage fanatic, it isn't likely you will be blase about the big, charred tubes they serve up at Byron's Dog Haus; you will love them or hate them.