How to prevent Mac OS X users screwing up their system if they rename their user folder

<Branes> You know how bloody often people ‘d screw up their install by changing the shortname of their home folder in /Users?
<OzDave_mbp> ok
<Branes> Fix: make a symlink of their home folder, put the symlink at root level, then hide /Users completely 🙂
<OzDave_mbp> neat!
<Branes> Then they can change their home folder as much as they bloody well like
<Branes> changing the name of the symlink doesn’t reflect in the destination