Reaper pictures are always funny, right? It was the child birthday of the little boy in the back. A stray dog decided to give up the ghost, and the remaining guests all ran out to watch as sims always do. Apparently residents of Union Cove still had a great time, as everyone told my sims so a moment later. They promptly left without eating their cake right after the stray dog passed.
There are also two cats watching but I think they are hidden beside sims