Big dog, small dog: If two dogs are living in the same house, a hierarchy will develop between them. Being in a more elevated position gives the “top” dog the advantage and this is frequently used during disputes so that the leader can gain control over the situation again. Often times, the physically smaller animal takes control believe it or not. For some reason smaller dogs¬† tend to have stronger personalities and they tend to show better ability to make decisions to be the leader of the bigger and more relaxed dog.