Marie's point of view. Word: Habit.
"Jason, we're going to the beach," Marie said incredulously. Almost questioning.
Jason nodded, confused by her expression, hands hovering frozen above the bag he had been packing.
"You can't take a gun to the beach!" she exclaimed.
Looking down, he noticed the handgun he had been about to tuck into a pocket inside the bag. He grinned sheepishly, laid it aside, muttered, "Force of habit."
Later, Marie noticed that he had slipped not one, but two guns into the bag once she had left the room.