For the unaware, the "Fist Bump" buddy is a gunbuddy of the Riot Games logo, to my understanding, you can only get one by being gifted one by a Riot Games employee.

So, if you've got one, what's your story? How many have you seen?

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I've only seen two so far (I've played fairly regularly since beta), once a few months ago and once tonight from someone who claimed to be a Riot dev (caturday4 if you're out there, I'm sad we drew that, close game).