Patrick saw a Ravenclaw girl working in the cold section of the greeenhouse. As she got the broom he realized what she really needed was a shovel like the one they use to load dung in the wheelbarrows. He went and got two of them plus a wheelbarrow. He magically clean them so they could use the to remove the snow.

"Hey Rosa, I think you'll have better luck removing that snow with this," he suggested. He also held out a small vial. "A small sip of this will make you feel warm for about 30 mins. It's similar to a PepperUp potion."

Patrick had already take a sip so he didn't fell the cold. He scooped up some snow and began to load it.