Depends how fair you think punching an innocent man in the face is because you chose to go down the pub for two hours and have a few jars, and missing your hotels hot food window? "because I was worried" is not a valid excuse in the court of law. I have every sympathy for Mr Clarksons worries at the time, however the only way you can blame his actions on potentially having a cancerous tongue is if it had spread to his brain and physically effected his personality and temperament. I very much hope it hasn't and he is fine, but as you say 'what we don't know we make up' and that would make a lot of sense, and is backed up my many medical studies. The symptoms fit either a) a brain illness or b) being an insufferable arse. Choose your preferred.