Grrrr!

Our smallest dog, Iona the Jack Russell weighs in at about 5Kg. Our heaviest, Ruaridh the German Shepherd is c. 35Kg. They play fight with each other all the time, Iona apparently has no notion that she isn't the same size as Ruaridh, but then she is a JRT. Here Iona is all teeth and Ruaridh is the blur in the right (you can see the size of his front paws under Iona's head).