I'm not entirely sure, but I think some players used to do shenanigans where they walked around looking straight up while walking crouched and then activating and deactivating the scope again and again, which made the character either look wonky or doing suggestive hip movements. Often when one player started it, a couple of others joined and they did like a polonaise. It was beautiful and both teams forgot their fighting for a moment and just went as a sniper train around the map. I might be confusing this with the protocol for dealing with spy crabs though.