Can billiards fill any figure?

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For any 2D closed shape, is there always a point and angle for which the billiard movement of a ball fully completes the interior of the shape? In other words, does the path eventually converge to the full figure?

For example, will the moose be completely filled?

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If not, can you provide an example of a figure for which a ball shot from any point, at any initial angle, will not fully cover the interior?