Every year, we attend a large gathering of reenactors, medieval period, in western pa. in 2010, my children and i were walking around the campground late at night and observed 4-6 flying objects far off, playing with each other, flying around each other too fast for planes, helicopters. sometimes circling, almost seeming to play tag. bizarre. possible link—our group gets buzzed frequently by military planes in the area. they use our campground to practice counting populations in our tent city. our event is called pennsic, if that helps you look us up. 10-12,000 people every year.