You were leisurely swimming through the cold endless abyss of the ocean's depths, searching the dark water for any sort of fish to prey on. Your attention is suddenly caught by an odd.. whale-looking creature..? in the distance

You stop for a moment, turning your attention towards the odd creature. It was rather small and shiny, with an odd cylindrical shape to it, and even stranger bright lights lining its sides and face.. As you curiously swim closer, you can see that it even has no fins nor tentacles nor anything like any of the common fish you’re used to.. You’ve never seen such an odd creature before, and you can’t make sense of it.. (it's a submarine but you don't know wth that is)

Hmmm.. maybe you could try scaring it to death, or see if it's edible or something?