Barbecues always kick my ass. I always seem to work really hard at getting the place set up for one, but never seem to think about what we're going to do other than make food.
I believe this is largely because my family barbecued often and we sort of made our own entertainment. We'd invite other family members over to play Pinochle and such. It was a big part of my definition of summer as a child, these family barbecues.
So much so, in fact, that they took on an almost ceremonial quality, as if by producing spare ribs and macaroni salad appropriately we would appease our totem spirits and the crops would get their rain and the elk would run wild.