Adventure Time - I Like To Imagine Finn Sang This After The End Of Frost & Fire

Recent behaviour of Finn in "All the little people", "The Jake suit" and this last episode are quite messed up.

But then again, which kid wouldn't be messed up by living all alone with a magic dog in a post-apocalyptic world ?

He's a teenager now, if he doesn't make small mistakes now, he'll make horrible ones later!
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Also, he's turning out to be quite the masochist.