Wednesday, March 29, is a hugely significant day in Britain -- it's the day Prime Minister Theresa May officially starts the Brexit process by signing the letter triggering Article 50.

For half the country, it's the start of what they voted for. For the other half, though, it's the last thing they wanted.

J.K. Rowling falls firmly in the latter category.

SEE ALSO:67 ways your life may change if the UK 'Brexits'

On Wednesday morning, she summed up exactly how she feels about Brexit Day using the sweet medium of SpongeBob.

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Judging by the responses, many people felt the same way.

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There was also support from across the globe.

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Finally, Rowling responded to this fan from Portugal.

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Goodbye, Europe.

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