Babies are definitely more prone to biting, esepcially males, but it's really all out of fear. They usually outgrow it within the first year of handling (some before then or a little after). Every now and then you will run across a BP that does have a more aggressive disposition than others, but those only come along so often. I use glass tanks for my BPs, and I don't think it makes them feel any less secure than other enclosures as long as you provide the right security (Hides, fake plants, vines, background tank paper, etc). My female BP has never struck at me or anyone. My male is a little more on edge than her, but has only struck when provoked (handler smells like food, someone being rude and tapping on the glass, when there is a lot of people around, and when the dogs get a little nosy). But overall, yes, they are very docile animals!