I haven't really handled him. I tried a little bit but he slipped away and it startled me, so I scooped him into a container. He is eating. He is my first frog so I am not familiar with how they should be acting, but he is acting like I feel a frog should. He got a little defensive with the container and bit it and was kicking it. He's not lethargic or anything. The lump is hard and almost feels like it could be an old scar or bone poking out.