During the summer Pia and Paul counted bunnies or butterflies on their early morning runs around the campus. At first it was butterflies, a competition, but there was a question about moths, and either way the insects were difficult to count, fluttering and flitting the way they did. Bunnies at or around dawn were plentiful, so the switch was made. Each could count only the bunnies on his or her side of the trail. If a bunny should cross their path they could both count it.