I remember them as being fun events for the most part. Especially anytime a sporting event was part of the event. Softball, volleyball being two of the more popular because all ages and both male and female could enjoy without it becoming a testosterone-fest.
I do remember an impromptu wet t-shirt contest, unplanned and unintentional. I was about 16-17 and a couple of 15-16 yr old hottie sisters were there. It was extremely hot and humid that day. Too hot to be outside. One of the girls found a bucket, filled it with water and dumped it on one of us. Of course we had to retaliate. We grabbed a bucket, filled it and chased the girls around the picnic area. I came face to face with one of the girls (who was, um, well-endowed) and let her have it, right on her tight, white t-shirt. It was then we realized, along with all the parents, adults, elders, et al, that she wasn't wearing a bra and just how perky a 16 yr olds breasts can really be. She didn't seem to mind, I know I didn't, but boy did all the adults go nuts. That pretty much ended the entire event right there. I understood that I probably shouldn't have done it and would have accepted any punishment handed down, but for the whole picnic to just shut down always bugged me. Why should everyone have to be suffer because of a couple of adolescent hi-jinks?
Thanks for the thread, it brought back some good memories(I can still see that wet t-shirt in my mind's eye).