There is an unwritten law in Texas which states that if ever you are hosting people from out of town, you must -- without exception -- take them for authentic Tex-Mex cooking. So, being law-abiding types, that's just what we did last night.
Helen, above, is my sister-in-law: Marcus' brother Matt's wife. She is kind and patient and true, not to mention smart as a whip. She just finished medical school, and is currently doing her residency. This is a good thing, not just because of the generally-accepted ideology that pursuing a career in medicine is admirable, but also because when you are married to fearless (and somewhat reckless) types like Marcus and Matt, it's often advantageous to have a doctor in the family.