Andrew tried his best to stifle his laughter at the answer of the larger student who'd slid, sorta, into the seat beside him, but the 11 year old giggle escaped his lips no matter how hard he tried to stifle it. This Eli kid had seemed to be a rather prickly thorn for Professor Wilson, and Andrew really didn't want to give Eli any encouragement. However, Eli did look a trifle ridiculous, and his answer seemed even funnier to Andrew. He knew Eli was rather artistic, but if Eli considered this good color coordination, then he was a colorblind painter indeed.
To make matters worse, this morning, Eli looked a lot like some of Andrew's father's friends who'd decided to stay all night in the pub. Sorta smelled like it too. Well, for that matter, he'd seen his father look like that a time or four as well. Well, all except those weird pink pants, and Andrew was pretty sure those were not part of the Slytherin uniform. Besides that, they made the Slytherin snaky green tie look very odd and out of place.
And now, thanks to Eli, Andrew was working on getting a rather incurable case of the giggles. He had no earthy idea why, but he just couldn't stop laughing. He was truly trying his best to become serious again. He stared down at his textbook, trying to hide relentless silent giggling, and when that didn't work, he propped the book up on the desk and tried to slink a little lower in his seat to hide behind it. He saw some of the students around him catching on and they were also trying to hide giggles, finding Andrew's little boy giggle was very contagious. And he really was trying so hard to be good! The last thing he needed was the professor to be angry with him as well. The harder he tried to stop laughing, the more the students around him laughed, and that got him started all over again.