Great idea but I think in Among Us, there are a lot of tasks that need you to go from one place to another to complete them (task with fuel and similar). Card swipe is perfect, it's short, which is rare, it can take you sometimes more or less time to do it and it puts you under the pressure if someone is looking at you at that moment. If you fail at first, you may be suspicious and if you do it at your first attempt, you may be also suspicious for doing it so fast.