Such is the case with the girl who wanted to buy an extra-small helmet for herself because she just started riding. The sale seemed to be going on its way pretty well, with the girl insisting, after measuring herself, that the extra-small would fit. However, toward the end, when things were nearing completion, the girl had a final thought. I believe the parting words were, "I think I'll just keep looking, because I know my boyfriend's helmet fits me perfectly, and it's a large."
C'mon now. You know that's brilliant. There is, after all, only a slight difference between an extra-small and a large, right? In some delusional minds, I guess.