In Taylor v Alidair Ltd, the Appeal Court upholds a finding by the Employment Appeal Tribunal that it was not unfair to dismiss a pilot on the basis of a single error of judgement. And in Retarded Children's Aid Society Ltd v Day, it holds that the Code of Practice notwithstanding, in some cases it may be reasonable to dismiss without giving the employee a second chance, "especially with a man who is determined to go on in his own way".
In LM Boychuk v HJ Symons Holdings Ltd [1977] IRLR 395 EAT, the EAT held that an employee who insisted on wearing a "Lesbians Ignite" badge was fairly dismissed because the employer asserted that the badge could cause offence to fellow employees and customers.
In Devis & Sons v Atkins, the House of Lords rules that whether a dismissal is unfair must be judged according to the facts which the employer knew or should have known at the time the decision to dismiss was taken.
In C A Treganowan v Robert Knee & Co Ltd [1975] IRLR 247 HC, the High Court held that a clash of personalities between employees constitutes "another substantial reason" for dismissal within the meaning of the Trade Union and Labour Relations Act 1992.