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The streets of Bristol are reportedly home to a vigilante.
But unlike Batman or The Punisher, they are not going around taking out criminals – instead they are correcting bad punctuation and grammar on street signs and shop fronts.
The mysterious avenger was recently the subject of a Radio 4 documentary, but still didn’t give away their identity.
It could be anyone – even you (providing you live in the Bristol or the general South West area). So we’ve put together a little grammar test, to see if you’ve got what it takes.
Think you know the difference between who’s and whom, and when to use a semi-colon? Take our quiz below.
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