When a human is thrust into Equestria on a whim, he struggles to fit in with the locals of this strange land and tries to figure out how to get home, making new friends along the way.

The Princesses find an alien creature barely clinging to life at the scene of a terrifying crash. Can the Combined Power of the Elements of Harmony save it, or more importantly, should they save it? Will the arrival of this strange creature tear Equestria apart?

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https://tvtropes.org/pmwiki/pmwiki.php/FanFic/Article2

You don't think Rarity risked getting cement in her mane just to repair a dam, do you?

This is the short tale of a frustrated white unicorn and an oblivious orange earth pony.