When you tame them they CAN still rage and ruin your progress and kill your tames!!! So, keep them AWAY from your base. But, you can make a mini base with this guy, a mini base being; A small house with a bed and some stuff. make sure it's not too dangerous so your giga doesn't rage and destroy your base! But, i reccomend just to keep it away from your base unless it is really safe and nothing dangerous ever spawns there. Please ^ if this is helpful!