While I Was Asleep Dogs Fighting

My dog and the nieghbour's dog don't like each other. While i was asleep they went to the fence and from the calmness they barked and growled at each other. The neighbour's dog who has sharper voice tore some pieces of the wooden fence on the nieghbour's side but the another layer of the fence is iron and cannot be toren apart by them. Recorded by sony stereo dictaphone.