That's real secure. That piece of wood is NOT coming off.  

Seriously though, I heard, a very long time ago, a report from NSW DMR friends  that a lollipop man had his arm ripped off by a loose rope attached to a passing truck. The rope wrapped around his arm/lollipop as the truck went past and 'pop', off went the arm. At least it won't be the strap on that truck that kills someone.