i've been watching some 1967 episodes(my favorite part of the show)and there is alot of evesdropping going on here.
in one prime episode burke and vicki are on the terrace discussing their plans about moving into the west wing and...da,da...barnabas is listening in from the darkness(natch)and then interupts with "i couldn't help but overhear blah,blah,blah" and then to add yet another layer of snoopiness to this exchange we learn that julia is also lurking about in the shadows listening in too!
it's all too much!
something about all these supposedly cultured,sophisticated people skulking around this stupid terrace evesdropping on one another really entertained me.