Being mean & petty; pass it on to your kids.
After flying the maximum allowable amount of time for the day we finished our duty day in a warm and pleasant holiday destination. Following a short van ride we get out of the hotel van at our nice all inclusive resort hotel on the beach for our 24 hour layover.
Nearby is a father (American) who watches my flight crew disembark from the van and his face twists up into a scowl. He starts loudly protesting to his teenage son and the rest of the family with words to the effect that now he knows why his tickets cost so much (the flight crew is staying in a place that is much too nice for us-according to his world view-we are costing him too much).
Normally I try to empathize with passengers, sometimes they make it hard. He must be a lot of fun to live with.