Thanks, and that's great to hear! I also had not played anything like it so I hoped it was original.
That's a good suggestion. It's funny you say that, I very nearly added a counter at the bottom that said "5/10 lights" but decided against it to minimise the GUI, and try to explain it using graphics, so instead it would show you by physically turning the light on (but only slightly because it is day after all).
Haha a thief? Perhaps a fox? I wonder why he would do that, maybe he is angry he was not invited to the party... That opens up many questions for a backstory of a supposedly "innocent and lovable" character. I agree that there's so much potential for additional narratives, and a spiteful gatecrasher sounds like quite an interesting one.