"Patience, little one.  The tables up in the trees all have microphone circuits; they have to have them for service.  This table is not gimmicked - I hope - as I saw the waiter take it from a stack of unused ones.  As for the tank, not only is it un-American and probably subversive to eat without watching stereo but also the racket from it would interfere even with a directional mike aimed at us from a distance... assuming that Mr. Douglas's investigators are beginning to take an interest in us, which I misdoubt they are."