Justin and Brittany Selph came to the Henry County Medical Center in Tennessee prepared for a big day: Brittany was pregnant and due to give birth later that evening, and it just so happened to be Halloween.

When they arrived, Justin’s doctor, Paul Locus, was dressed as Batman’s The Joker. “He was dressed in The Joker attire when we arrived at the hospital; he left that afternoon while my wife was still in the waiting phase, to go home and hand out candy,” Justin told BuzzFeed News.

Dr. Locus had been looking after Justin and Brittany throughout the pregnancy, so the family knew him and there was no need for an apology regarding the Halloween costume. In fact, after Locus said he would return later that evening, having changed his clothes, Brittany said they hoped he would return as The Joker.

The Selph’s new baby daughter, Oaklyn, was born at 8:20pm on Halloween. “When [Locus] came in our room the following morning, in normal doctor attire, he said, ‘Sorry I couldn’t make it in last night, glad to see the delivery went well’,” said Justin. “He was a great sport about it all.”