Lately while training my 1 year 2 month old YLF has been lacking motivation. She will lazily trot to marks, walk back, and sniff the ground. She has been through the FF program and is nearly 100% on retrieves whether she wants to go or not. I change up the drills and keep them short but still no real enthusiasm. Today I tossed a water mark and the pup refused. I said fetch and gave e-collar.......Nothing. I repeated this several times and still nothing obviously pup was confused. Afterwards her training attitude changed and she became a hard driving hard working pup (hence attitude adjustment). So can anyone help me out here I am totally confused as to what occurred. Especially why she was confused and did not fetch in water when she does it on land consistently. Thanks in advance for any help.