Non veni pacem mittere, sed gladium.
It's like a back-scratch for a human. There are a few things that are better than a good back scratch, but not that many.
Turn your back, I dare you........
a lot of sharks are susceptible to tonic immobility - this video shows it with Tiger Sharks - yikes!https://www.youtube.com/watch?v=NErt6zP2MBI