Kevin was wondering why was even here in the first place. Doing something nice for someone was not something he normally did and he had to admit he did it more to get house points. And not to mention that the Groundskeeper had thrown a beeshive at him last year! which had been because he had sprayed a solution in his face but whatever

Although it was Sunny now, Kevin had felt the weird blasts of cold air sometimes so he had put on his Gryffindor robe and inside of it was something special. Believe it or not but Kevin Hirase had gotten an exploding potion from the Professor right there and he couldn't WAIT to try it out. His fingers touched the vial but he did nothing though. He was low..but not that low to blow something up that they were going to build. But he wanted to have the potion with him in case he needed it.

And yes, one does need to have an exploding potion now and then, that wasn't weird at all.

When he reached the Groundskeeper's hut , the second year took a look around at the piles of wood and the hammers. So they were really going to build something? He had to admit, it was a fun project. "Yo" he said to the Professor. This time actually acknowledging him instead of sneering or simply ignoring him. "I....got the message during breakfast about.....you know?" this was his way of saying thank you. It was embarrassing enough.