Replying to Autoerotic Skiing

So today I'm just minding my business steezin down a catwalk, when I see this kid in a shmedium green jacket with one arm not in the sleeve. I pass him, and I'm almost 100% sure he was jerkin it under his little green shmedium jacket. I look back, and all I see is something going up and down in his jacket/pants. He was just strokin it like it was nothing while skiing in the middle of a catwalk. I'm kinda disturbed. I'm not sure if it's a common thing, but spankin the monkey while skiin seems kinda fucked up. Just thought I'd share my experience.