Even on a day trip, I bring along my standard rollaboard. It has night clothes and toiletries. No get-home-itis for me, even on day trips.
I’ve flown with FOs who do day trips that don’t pack a bag and comment how they have been doing it for years and (I quote) “have no plans to be stuck in Mexico.”
Um, news flash, yeah you can be stuck. One serious write up in the logbook and you’re done for.
Nothing more than an inconvenience, I assume the guy will just sleep in his undies or buy clothes at a local store, wear the same uniform shirt tomorrow and out we go then. But still, as a CA it strikes me weird when a FO tried to tell me we won’t be getting stuck somewhere.