stumpys are one of the most placid lizards u can get,not sure where the cranky comments came from,all animals can hiss and open mouth display ect,especially wild caughts and juvies,but in captivity they get used to you and become mega mellow,i havnt been hissed at in over a decade by my stumpys,also they will happily live with bluetongues,inside or out,i raise my juvie stumpys and blotched blueys together every year,never any issues,though the stumpys are pigs,so u need to be sure the blueys get enough food,lol