A Call of Duty: Modern Warfare 2 player shared a video on Reddit demonstrating the physics of the game. The developers did a good job on such a strange and insignificant detail, and now more players are aware of the fact that toilets can absorb objects.
In the video, the player threw a light munition into the toilet, and the commentators wondered what would happen if a grenade was thrown there, and in general, what other items would fit in the drain. Some suggested that the developers were so busy working on the reflections of light in the toilet that they did not have time to finalize the hardcore mode and other more familiar details from the previous parts by the launch.