I'm chillin out on my balcony since it's a nice night. This dude walked by and every time he put down his left foot it made a whooshing noise. He had some kinda fancy schmancy lookin Nike basketball shoes on. I'm guessing one of the air bubbles blew out but he's still trying to wear them anyway. But now that I think about it I had a pair of Airmaxes that the bubble popped on and it didn't make a whooshing noise. Any other explanation for how that could have happened?