any advice lads and lasses... i have two border terriers one just gone two and one just gone one, both working and been together since pups, the younger one has took to trying to kill the older one over the last few months,after numerous vet visits due to puncture wounds the vet said i should think about gettin the youngun castrated to wich i agreed, this was done just before christmas but again out of the blue the little beggar decided he was going to have a piece of the big fella, another trip to the vets. dont want to get rid of him if possible he,s a cracking little worker but its only a m