Harley in “Three Birds and a Baby”

Let me explain something to you, Dr. Melfin; I know I may look like the ultimate career woman, but all this, it means nothing to me. I'm unfulfilled. The Joker and I always wanted kids. Me and my Mr. J, we would have had such beautiful children. My green eyes and his green hair. Instead, the best I could do was to have you custom-make this baby for me and you lost him. My biological clock is ticking, Melfin, and it's a bomb!