A non-disparagement covenant framed in terms of conduct which 'may harm or injure' reputation does not require proof that the breach was committed knowingly, including knowledge that the entity disparaged was a related body corporate. The parties are taken to have accepted the risk of unintended or unknowing breach. The principle that injunctions should be expressed with precision and clarity is a counsel of perfection rather than a mandatory standard, and does not bar injunctive relief in the terms of a negative covenant where no practicable alternative formulation can give the promisee the protection to which it is contractually entitled. Where a trial judge mistakenly refers to material not in evidence but explains the material was merely confirmatory of a conclusion already reached on other evidence, the explanation will not give rise to apprehended bias where the other evidence all but demanded the conclusion.
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