Oooooh oh, gosh! Reading that made me laugh so much, and it really back up the way I have always pictured Sirius pre-Azkaban. I think I like and understand Sirius so well because out of all the HP characters, he is the one I can relate too the most... easily.

Right after Hogwarts, this is the exact kind of stuff I imagined Sirius getting into. The rebellious teen that still hasn't grown out of his younger thirst for mischief. I was really glad J.K. wrote this, she did a really good job of showing Sirius's funny and dry sense of humor in his younger years.

I really don't know what else to elaborate on besides the fact that I think J.K. was spot on. But on another note, I saw this was at least a good four or five years before James got married. And also a good while before they joined the Order of the Phoenix. There were much smarter than to pull this kind of stuff during a War.