What should the opposing skip do if a player plays out of turn?

When a player plays out of turn in bowls, the proper procedure is to stop the bowl in play and return it to ensure that the game follows the correct sequence. This is important for maintaining the integrity of the game and ensuring fair play.

Playing out of turn disrupts the defined order of play, which is crucial for the flow and rules of the game. By stopping the bowl and returning it, the opposing skip can rectify the situation and allow play to continue in the proper order. This helps maintain the structure of the game and provides an opportunity for the correct player to take their turn.

The other options do not align with the rules or best practices in bowls. Allowing the bowl to remain would undermine the importance of adhering to the sequence of play. Declaring the end dead might seem reasonable, but it is not the standard approach for handling a situation where a player has bowled out of turn, as it does not correct the sequence effectively. Marking the bowl as a dead bowl is also unnecessary, since the primary focus is on resuming play correctly rather than declaring a bowl as dead.