TUI: Kill Gorn 5% of the times you start the app

[nynymike]

The Gorn protects the TUI... but he can't be everywhere at once. There is a 5% chance when you start the TUI that you will have to kill the Gorn before you can proceed. Perhaps he is behind door A, B or C... Once you defeat the gorn, the CLI will be out of "gorn-mode".