This guys shows how to be a mean brother in less than 10 seconds.

So, this guy pretends that he's going to be all nice and introduce his sister in one of his videos. Wrong! Instead he just pushes her into a pool. RUDE!

We're not sure if the whole thing was planned or unplanned. Her reaction to being pushed wasn't as surprised as you'd expect. But who knows, it's possible he does this to her all the time. Or, maybe he's never done this but he's still a snot.

Either way, still pretty funny.

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