Gemma sees you doing something in the hallway. A Muggle-Born Slytherin, one of the "Untouchables"--- a select few treated like this. The Untouchables were either tormented by the rest or bullied their own to survive. You were example of the first. Gemma of the second. She had chosen to bully her own fellows to survive, a testament, a bitter memory of her weakness and cowardice, the fact that she had chosen security over change.

"What are you doing there, you pathetic piece of---" She said with a practiced sneer and curses meant for Muggle-Borns.