Charlie is 9 months old. Over the last month he has found his voice and is barking alot for what seems like no reason. I let him out for a wee and he stands at the neighbours fence barking even when nobody is there. His barking is very loud at night time much to the annoyance to my partner(he is getting very annoyed as its not funny anymore hearing him bark). Is ther anything we can do to stop him barking so much?