While I come to the conclusion that the appellants did not plead co-ownership, I should not be taken as making the point that they should have included in their pleadings, the legal word of co-ownership or its synonym joint-ownership. That is not what I mean. As a matter of law, a party cannot plead law in his pleadings. Although there are exceptions here and there to this general principle of law, particularly as it relates to the plea of some specific defences to certain actions, the matter before me, does not extend to that. All that the appellants were expected to do was to plead enough facts upon which the law of co-ownership can stand and keep its shoulders high, awaiting the lawyer to replenish it with either statutory authorities or decided case. But that was not done here, and the trial Judge, could not have supplied it. .
— Tobi, JCA. Abraham v Olorunfunmi (1990) – CA/L/83/89