Hello, I have a spare tank and the equipment (heat mat, lighting, hides, water bowls, etc.) to house a new snake. My secondary job is to teach children in schools and kindergardens about reptiles, so I want one of these beauties to show a bit more patterns and colors. I all ready own quite an amount of reptiles like leo geckos, corn snake, ball phython, bearded dragon, water dragon and the biggest celebrity Billy, the huge male iguana, so I do have experience with reptiles. I'd like to expand this collection and my question is which one is easier in general to handle? I normally let kids gently pet them, so I need an animal with absolutely no signs of agression. I honestly tend more towards the Cali king snake, since I adored them ever since I was a kid, but I've heard they can become quite agressive at times. This would not be a problem, as I have more reptile bite marks than teeth ( I work at the Budapest Zoo reptile section), but it is a key factor for the children. Thanks!