Xubuntu Disable Network Manager

^{on Sept. 30, 2013, 8:39 p.m.}

this disables it:
sudo touch /etc/default/NetworkManager
sudo touch /etc/default/NetworkManagerDispatcher
echo "exit" | sudo tee -a /etc/default/NetworkManager
echo "exit" | sudo tee -a /etc/default/NetworkManagerDispatcher

and this re-enables it:
sudo rm /etc/default/NetworkManager
sudo rm /etc/default/NetworkManagerDispatcher