Reminds me of the time I was working late and ended up in a stairwell that had the doors locked. For a couple minutes, I panicked and felt like I was in a coffin, until I eventually saw a small sign to press a buzzer for the superintendent.
This looks more like a slow torture device for mice. Think about it from the mouse's perspective -- he's enclosed in a very tiny space and he can't get out. In the video, the guy probably checked the mouse trap pretty quickly, but in a real world scenario, I can envision people only checking the trap once every couple days or once a week, or even forgetting to check the trap.
The mouse would probably panic and possibly go into a state of shock until he died from lack of water.
A better name for this device might be, "gruesome mouse torture/kill chamber..", and I'm not being facetious..