Original Commentary

Terrence really liked the character design on the 'random coffee girl' used for today's comic... but I wouldn't get too attached to her. As it was, we had to have one of those talks about today's comic which ended with a few rewrites. originally she had a line that implied that she thought Brisbane was interested in Jane, but it would have opened up a can of worms that would have complicated things more than we wanted, so this worked out better.- Isabel

Modern Commentary
That "Someone I used to know" that Brisbane is thinking about in the first panel is Caleb. Caleb is astoundingly knowledgeable about any kind of performance and will speak at great length about it. He talks down to Brisbane a lot, hence the similarity.

Caleb is also completely ignorant of any other subject and will, regardless, speak at great length and with total confidence. - Terrence