Rollerblading Kid

There is this kid that I often see around the USC campus and he always intrigues me. For anyone who might know this character, the following is not meant to insult him but rather to express my confusion to his ways. What interests me about this guy is that he always rollerblades. Everywhere, including inside buildings. He never takes the blades off. But what makes this scenario even more bizarre is that the kid only has one rollerblade on. The other foot is absent of wheels. Ok, even that I can kind of understand--he created some sort of pseudo skateboard out of one rollerblade. To top off the cake, though, his non-rollerblade foot has no shoe or sock. The foot is completely bare. Thats right, he goes around campus, kicking off on one bare foot. I just do not understand this. And there is so much dirty shit on campus--is he not bugged by this? If anyone knows him and knows why he does this, PLEASE fill me in. It would be greatly appreciated.