You were on a rock by the ocean, just sitting there with a sketchbook and drawing. The sun was setting, it was breezy. Nothing seemed out of place, until you noticed a head popping out of the water, glancing around quickly, and then swimming towards the shore. It's clear that he didn't see you. You see a tail under the water, attached to the creature. It snatches up something from the shore before going back under the water. Hold up, that was your bag! That thing stole your bag!