I don't know which is going to be easier to find these days, a real werewolf, or a genuine dogging couple. The bit about the youths that surrounded this crew tells you why the practice of dogging has passed into folklore in many places now - too many dickheads, not enough dickings.
I remember lugging a pub picnic table up onto the Chase one night (it had been dis-assembled, we all carried a bit each and put it back together when we got to our destination). So much easier to, ahem, support your weight on a picnic table than on the natural features. I can't recall bringing the thing back. It's probably still there now, Staffordshire's answer to Stonehenge, The Mystery Bukkake Picnic Table of Cannock Chase...