Hello there! I'm a first time mom to two sulcata hatchlings. They are four months old. ( I didn't know at what age they are not considered hatchlings anymore) we have had them for a couple months and kept them a secret from my kids. They were their Xmas present! they love them SO much! My son wanted to see them on the living room floor for a couple minutes. While I sat with him in the floor with them one of them walked right up to him and bit his hand! Then he bit his pajama pants, then he was walking and stopped and bent his head down and bit the rug!! Is this a normal thing for them to do? Is there a such thing as a aggressive tortoise that I should be concerned about? Thanks so much!!!