That's supposed to be 'Dom at Work' with a rather confused customer wondering why Dom's all peeved.
Looking closer at that panel, I think that's actually supposed to be a guy (though, of course, Mookie's art is insufficient to tell with certainty, as always).
LGBTitP Supporter In a Wonderland they lie, Dreaming as the days go by, Dreaming as the summers die - Ever drifting down the stream - Lingering in the golden gleam - Life, what is it, but a dream?
- Lewis Carroll