Ever thrown a tantrum so big even children were embarrassed?

Well in the land of spectacular shows of emotion one American has, kicking and screaming at Apple's Genius Bar after failing to fix her broken iPhone.

Captured by American TV actress Porscha Coleman in one of Apple's Los Angeles stores, the few second clip takes impatience to a whole new level, much to the bemusement of onlooking customers.

After being told by an Apple Store worker she'd have to schedule an appointment at the Genius Bar to fix her broken iPhone, the disgruntled Yank took offence, launching into a fit of hysteria.

Screaming "I was told I could walk in the store and get the parts", the riled up customer banged her baby stroller in objection to the rule as a shocked worker stood on in amazement.

Coleman uploaded the video to her Vine account, adding the caption: "This lady is goin OFF in the Apple Store!! Lol U don't have an appointment, lady! #coolit #chillpill #takesomemeds."

While being pissed off and loosing your cool is one thing, and in some cases entirely justified, crying like a baby is another matter entirely.

Hopefully for the sake of Apple, CEO Tim Cook and over 80,000 company employees the lady's iPhone was fixed, as she clearly doesn't appear responsible for her actions.

Or to put it another way, she's an absolute idiot.

Check out the video here

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