(chuckles) My, my, he certainly is persistent, gotta give him credit for that.
(goes down into basement and starts gently tapping on certain parts of the steel floor with a hammer, to test for weak spots, while humming the theme from 'The Great Escape')
Sounds pretty solid to me. And in case he does try to get through, I think we've got some titanium alloy in the supply closet. Barring that, we've got some dynamite and cement. And MBM, I think you oughta take a few cough drops; you can't do your evil-dictator laugh if you're coughing. (goes back upstairs, still humming, and sits down at an elaborate computer console with a radar/sonar screen; the image shows Beau worming through his tunnel, in a scene vaguely reminiscent of 'Alien.')