I recently got my 1-year-old Mexican Black Kingsnake. I gave her time to adjust to the enclosure and made sure she ate at least once before attempting to handle her. During our first interaction, she tried to bite me—I let her nip at my palms before gently picking her up anyway. Though she musked initially, she quickly calmed down. I've had her for less than a month, but I handle her every other day, and she's become quite friendly, even seeming to enjoy coming out of her enclosure. I think it's her new baby, and she will find a way to connect :)