Tell them to get out the tweezers and magnifing glass so that they can find their member, because it is the same size as their brian.
I’ve always wanted to go there - a cheap but effective ploy. But I hate that stupid argument (as dumb as the women are emotional stuff) and have always held back. I love how you phrased it, though! I’ll keep it in reserve if I get hysterical...er, I mean “desperate.”