you have a special watch, which can be used to stop and resume time whenever you press the button. You can get away with pretty much anything using this watch. when time is stopped, you can still move while the rest of the world is frozen in place. You can change things in the world and resume time to see what happens. Only you know that time was stopped, because nobody else can tell that it has happened at all. Anything that you do when time is frozen would appear instant to anyone else.