We currently have two male BPs. One under a year old, and one around 9 years old. They are both pretty similar. They are super laid back and never refuse meals(even when in shed). Their biggest difference is when you open their tubs. The younger one hides and stays hidden. If you uncover him, he just plays dead till you reach for him. The older on always pokes his head out of his hide and stares at you whenever you go into his tub. Its the most adorable thing for some reason lol.