We have been consistently training recall with our. dog ever since she came home at 8 weeks, she's now 14 months. We always carry high value treats (cheese/sausage) and use these for recall only. Every walk will involve several recalls and sometimes she gets one piece and sometimes several bits of cheese, she's then allowed to go back to playing/running. She was pretty good with coming back and I was reasonably confident, however lately (last month or so) this has started to slip and it seems that she will come tearing back to us if she has nothing better to do! If there is any distraction then that wins. She will respond to verbal cues, or a whistle and she will even respond to a visual clue if she's looking at us, but mostly when it suits her. I now feel much less confident that she will come back if I really need her to. Is there anything else I should be doing or could try to improve this. Ive heard it said that dogs can go through a 'teenage' period when they are flexing their own will and wondered if this could be the case and if so when might this end. Any advice greatly received.