Is hatred rational?

I am not questioning your methods on a practical level; I have had the good fortune of riding thousands of miles with maybe one or two dog run-ins where they barked -- I might have been a little startled -- and I pedalled faster and rode away... a very different world from yours to be sure.

It just seems that your hatred would be somewhat unpleasant to carry with you. I wonder if you could kill a dog under the same circumstances and feel compassion - I mean with awareness that you love dogs and the unfortunate soul who you had to kill suffered the initial misfortune of coming to an uncaring or irresponsible owner, before it's final misfortune at your hands.

I am not suggesting that you refrain from killing a dog if circumstances dictate it as a necessity. But perhaps your emotions run away with you a bit on the road like they might do when writing about dogs on an internet forum.