Hi I was worried about the same thing before I got Rolo. When I got him he was a few months old( 4 at least) ,which I was told is better to get one a bit older. He bit the shop girl when she tried to put him in little tub! I thought "Oh Sh*t" But I have had him 4 months now and no bite . He is sooo Calm , I always move soil in front of his face(no bite) I can pick him up and have even stroked him (no bite) I really dont think he will bite me. So at the end of the day its pot luck and depends on the frog , so I hope you end up with one like mine and not one like you see on you tube :O