He thought about offering to help clean things up a bit before he left, but wasn't even sure where to start even if Kevin agreed. Chances were the room was likely to get worse overnight before it got better, and maybe coming back in the morning would be a better idea. It was also probably a good idea just to make sure that someone else saw the damage that was occurring over one night, as much as he hated to think of Kevin as some sort of science experiment.
There was a long pause as Pete tried to decide whether or not the joke was appropriate enough, and whether or not he could keep a straight face as he spoke, but he managed well enough for at least a few seconds after he spoke, the smile finally reaching his eyes afterward. "Do you want me to burn you a disc with some Enya on it?"