What a fantastic paragraph... is this from a book?
As dhess pointed out below it's a moment from a scene in the movie When Harry Met Sally. The wording above, however, is my own.
That scene just happened to pop into my head when I read the word defenestration, so I decided I'd like to "use it in a sentence". I've read some Pynchon in my time, too, so I have a penchant for densely descriptive prose. I'm glad it was appreciated.
Bleeding Edge was relatively straight forward compared to Vineland. I haven't had the courage to tackle some of the larger tomes of Pynchon's yet.