Game with even just a Single Strike throw off a roll-based-boundary-check game scorer

public class when_I_roll_a_game_with_even_a_single_strike_and_try_to_roll_past_ten_frames : concerns<BowlingGame>
{
	[Specification]
	public void then_I_get_an_exception()
	{
	    Assert.Throws<ApplicationException>(() =>
	    {
	        var game = build_up();
	        game.Roll(10);
	        9.times(() =>
	        {
	            game.Roll(9);
	            game.Roll(1);
	        });
	        game.Roll(1); // Spare bonus, yay
	        game.Roll(0); // Ha! Should fail!
	    });
	}
}

Over eager bowler who likes to keep bowling after a perfect game

public class when_I_roll_an_even_more_perfecter_game : concerns<BowlingGame>
{
	[Specification]
	public void then_I_get_an_exception()
	{
	    Assert.Throws<ApplicationException>(() =>
	    {
	        var game = build_up();
                12.times(() => game.Roll(10));
	        game.Roll(1);
	    });
	}
}