what does the window do? can you just keep it closed with no consequences?
What if the laptops were solar-powered, and the longer you keep the curtains closed, the more battery the laptops lose?
And when Tax Man is looking through the window, you need to close the curtains before he breaks in through said window! There would then be an audio cue that would note that he's away from the window, meaning that you could charge your laptops again.
Does the phone do anything, by the way? I imagine that ignoring his calls will make the Tax Man come faster.