This Dublin girl won't stop scaring the life out of her twin

Giving family members a bit of a fright is one of life's simple pleasures - whether it be jumping out of wardrobes or

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Maximum fun, minimal effort.

And you get extra points, it seems, if you film their reaction to being scared again and again and put it on the internet - as Shauna Flynn did to her twin, Kate.

Sure, it's a little mean but that's what siblings are for.