answer:I would recommend someone cat-sit at their place, if possible. If not possible I would suggest that you put the cat in a carrier as far removed from the hub-bub as possible. (Like in a closed bedroom). I would not worry about food. Really. I think it is more headache than it is worth and noone will be expecting food at 8pm + at night. You will probably need more chairs. Any chairs on the deck? I would suggest 4–6 more chairs if possible or at least big 2 foot throw pillows for people to plop on. Offerings to early birds? Booze. Have something on TV. Olympics still on? You didn’t ask this, but even tho you “know” these people take care to secure valuables, pharmaceuticals, purses, etc. You don’t know the people they are bringing.