I have no idea what convesation you two are having, but I wouldn't call dimples a birth defect.
Oh crap. You mean my freckles are birth defect?
Dimples aren't what I would consider a birth defect. "Portwine stain" birthmarks, cleft palates, and actual defects do, indeed, cause suffering.
"God is the name by which I designate all things which cross my path violently and recklessly, all things which alter my plans and intentions, and change the course of my life, for better or for worse."
-C G Jung
"If your opponent is of choleric temperament, seek to irritate him." - Sun Tzu