We have an Ooooooooolllllllllllllllllllllllllddd Ben Pearson compund bow I dry fired a few times. Sounded like a bomb went off when I did. I thought, "You gotta be kiddin me! The deer must have died of fright because you sure couldn't shoot one with this bow!"
Of course we got the bow, and I dry fired it a few times, beforeI had the benefit of the education I've received here yet.