Sis: You have noticed this notice. You are reading this notice and have now noticed that the notice you've noticed is not worth noticing!!
Me: Did you notice that the notice in this comment about the notice above that wasn't worth noticing isn't worth noticing either?
Sis: I did not notice until I had already noticed and begun reading that the comment was not worth noticing. And noticing that, I notice I should not have continued to notice.
Me: Continuing to notice indicates that there is a problem with noticing. One should stop noticing as soon as they notice that something is not worth noticing. But notice how people never notice that they didn't stop noticing until it's too late to notice the noticing...