My 3 year old toy poodle, bailey, is currently having behaviour issues. He is well trained and we have even had a trainer not too long ago but despite all of this he is continuously going through phases a misbehaving/reactivity. These phases started to occurred since he was about 1. During a phase he typically gets very possessive aggressive, temperamental, reactive and starts to ignore all of his commands! Does anyone have any tips to help or stop these phases all together?