This thing was the size of a 2-berth caravan, dark brown, with a head and teeth like a lion, and it made the sound of a wolf eating a bear. But apparently he spent most of his time hiding in wait for all those people paying £1 to wander to the top of the lane, looking ahead of them trying to work out which way is to the Henge, and just at the right moment, when they are almost past the building...I'm sure I have some photos of the place somewhere.