War Has Been Declared !

[Auggie56]

On Rats !

https://www.youtube.com/watch?v=PXTiYQzzbB8

 

[Speedbird]

I can' remember which one, but I'm sure that I saw an episode in which the gentlemen were involved in the sport of rat-bating with their dogs.
Done with a stop watch to bet and see how quickly the dog can kill the rat in a pit.
https://en.wikipedia.org/wiki/List_of_Sherlock_Holmes_episodes