Shown as part of a memorial service in L.A. Wednesday night, Dickhouse’s Ryan Dunn tribute video will make you tear up like you got punched in the mouth by a lady boxer. Or hit with a giant papier-mâché hand. Or antiqued out of a dead sleep. Or had a dirt bike forcefully jammed into your junk. That long, graceful slow-motion bounce into a lake is as elegant a testament to a life as any eulogy.