A reboot user

[WipeOut <wipe_out users sourceforge net>]

Hi,

I have a colocated server and when I have to get them to reboot it they 
just hit the power switch which can't be good for filesystems and 
databases..

Is there a way I can create a user account that will reboot the server 
on login?

This way I can give them a user account and they simply login with that 
account and it reboots the server..

I am guessing I need to create a login script or something similar but I 
am not sure how to get the system to execute the script at login if that 
is the way to do it..

Thnaks..