Crazy.
Tell him to find his spirit animal and use it's powers to become an even better grappler.
For him, I'd suggest something along the lines of a bear or cougar/bobcat.
My spirit animal is a wolverine/mink and if he tries to have a vision quest to tame himself to a wolverine, he'll have to go along with you since it could be very dangerous. I wouldn't suggest risking his/your life for something you probably don't understand as of this minute.
P.S. You must risk your life to sing with whistling/breathing. I wish you good things even if you don't relay this info.
P.S.S. It's eqg: my key-code for Call of Duty 2:
P.S.S. Europeans seem to get along with bears:
Baby Bear wrestling with Kid - YouTube