"Then leave," Severus sneered back, still not lowering his wand. "No one is forcing you to remain here."
Severus was growing downright tired of the boy in front of him. What did he care if Black was assigned to this this flat? And most of all he was fed up with being humiliated at the hands of Black.
"I'm sure there is a bridge somewhere you can live under, cardboard boxes seem to be style down there - I'll provide you with a cement brick to weight it down when the rains come."
Severus flicked his wand in the direction of the door, but didn't cast anything, "I don't care what you do, just get out of my presence!"