Why do people do this? I wonder if he was dumb enough not to use strap locks? And even those are not fail safe.
Only way to be sure is take the screw out and install a over size washer but the strap is on for good unless you want to take the screw out again.
That head stock has to look real good now. http://www.youtube.com/watch?v=8-Tat0E1BCw