Ah yes--the MHD, what a wonderful time in aviation history. I remember it fondly, including one trip I took with Ken where on Mexicana they even played our song when we boarded, what else but the "Mexican Hat Dance".
I also have one good and bad story where I was detained by immigration at LAX and subjected to a full body and luggage search in a private room due to my frequent trips to eastern Canada with 40 minute layovers in Puerto Vallarta