I decided to try something new and took what I guess u were talking about from #!:
oblogout from https://launchpad.net/oblogout/
Download and unpacked. Then installed one dependency (python-disutils-extra).
Ran sudo ./setup.py install
Then edited /etc/oblogout changing only one variable:
it showed up but right now I cannot test as I need my session open.
Looking at the rest of the config the only command which will probably not work will be logout but being on my netbook I don't use this anyway.
THANKS for the tip - will post the results later and if I find a nice command for logout.