The way I picture this happening: When they where kids this is how it always went, Dave would take both and John would just smile and laugh. John was so scared when Dave said this. He thought he lost his friend Pesicola John and Dave
Okay, but seriously? Karkat is like, the sweetest guy ever! He suppresses all of his motions in order to maintain some sense of leadership, and even when shit goes to chaos, all he ever does is out of the best interest of his friends.