Meet the Grammar Vigilante
Media playback is unsupported on your device

On the trail of the Grammar Vigilante

He has an 'apostrophiser' and he's not afraid to use it.

This video has been optimised for mobile viewing on the BBC News app. The BBC News app is available from the Apple App Store for iPhone and Google Play Store for Android.

  • 03 Apr 2017
  • From the section UK