Every time I go down to the beach I get yelled at by attendants for not having a sword...

"So, what did you bring to smash these watermelons, Lyn?"

"Mani Katti."

She has terrible sword etiquette. She needs to wipe her blade clean before sheathing it.

The joke is Lyn's showing less leg than she does in her normal outfit.

I love that the streaks in the sand are indicative of her having not merely sliced but crit the watermelon.