Sniffing One's Own Socks (Or Shoes)

Found on the Internet:

"...[S]ock-sniffer." You know the kind of guy who comes home from a long day of work, his feet have been sweating all day, his socks are ripe with the pungent aroma of stale milk and wet leather, and after he finally sits down and takes his socks off, but just before he throws them in the hamper, he takes a quick sniff to sample his odors.

http://size11size11.tumblr.com/post/45078389093/shonentidus-goldtoeman-wearing-auro-socks

Pungent!

Or sometimes, he smells his shoe. In this photo, the lamp is on and it looks like dusk outside. Our man has just come home after twelve hours. What does he do? High school vice principal? Professor of accounting at the local college? Fleet sales manager at the car dealership? Is he airing out his crotch too?