Hi - could anybody recommend a good trainer/behaviourist in Havering. I am going to find somebody to help me with Louis (4yrs old) who keeps barking at all the other dogs and I am convinced now it is aggressive. I really want him to get over this so he can enjoy running around freely but darent risk it in case another dog joins him unexpectedly. He is really well behaved and friendly and confident in all other respects. Thanks for any advice. Maxine.