Am I crazy?

My Grandmother's 83rd birthday party is Memorial Day weekend in Green Bay. My mom and her sibs have rented a boat for 100 of our family members for the occasion. 4 cottages have been rented near Green Bay to accomodate out-of-towners. 17 people from the Mary family plan on being there and are supposed to cram into one of these cottages. 8 adults, 9 kids. 1 bathroom. Yes, 1 bathroom. When I expressed concern that this might be troublesome to get ready for the fancy party with only 1 bathroom and 17 people, I was told that I am "crazy."