It might be a small issue, but it should be easily resolved. Like in snooker or chess, curling needs a resign button! It is quite common that curling games ends in handshakes before or during the last end, as it is often practically impossible to score enough to even tie the game. Having to exit to the lobby seems unsportsmanlike, and sometimes you might want to challenge for a rematch. This should be made possible. As a side note I would urge players to resign more often. Coming home more than four points down with hammer or more than two points without, is just a waste of time.