I (miraculously) saw a guy at my school wearing M50's while sitting on a bench. I had an impulse to sit next to him with my own M50's, but felt it would be a little awkward.
Of course, I've also seen my fair share of Beats and Skullcandies lately. People really love the Skullcandy "Uprock" at my college. Maybe due to its compactness, and high probability of breaking?