If the application were refused, the plaintiff could issue a separate proceeding against the third respondent, and therefore the practical issue becomes whether it is more convenient for this claim to be included as part of the present action or whether it should be a separate action. It is not necessary for the plaintiff to show at this stage either that he has a good cause of action against the additional defendant, or even that he has a prima facie case against the proposed party. He need only show what a plaintiff in filing a claim and statement of claim has to show, the pleading of a good cause of action against the defendant. In my opinion, where there is no issue arising about the limitation period, the plaintiff does not need to show more for the purposes of an application under r 69(1)(b)(ii), in terms of proving his case. He does need to show that the proposed defendant comes within the terms of that subrule, but the contrary was not argued by the third respondent. (para. 26)