Been having a problem lately....dident really start getting bad till he got biger and now its starting to hurt. My ducky bitting my fingers and hands a little to hard. Why is he doing this and how do i tell him no, or at least get him to stop? I dont think he means it as trying to hurt, cuz he knows my hands feed and water him being as im his "mom"(ima guy and thats wierd but whatever lol).