John was staring off in space. He was thinking about Hogsmeade, and how the weekend was so close. He couldn't wait to get off Hogwart's grounds, and into a shop. It made him feel less claustrophobic, as if escape were just a few feet away.
"What?" He asked looking over at the potion. He had given up on actually doing the potions once Snape quit teaching the subject. He had a sniff of the potion and recoiled. "Wow, that's awful. Are you sure it's right." He leant over the potion to have a better look. He reached beside him to grab the mandrake root and some billywig eggs he had measured out earlier. That was usually his job, doing the measuring.