When a GM gives you a situation where a number of raises are required for a countdown, how does that work exactly? For example, the GM announces to the group that on Raise 2 the powder keg will explode and the players will suffer 2 wounds and on Raise 1 the ship would sink. Does each player have to spend up to 2 Raises to totally avoid the wounds from the powder keg explosion and 1 Raise to exit the ship before it sinks?