When I got Bailey castrated, he seemed to toughen up a bit as he can be a bit of a wuss lol. Since having him done, he does bark at people who are in the street who he can see when looking out the window and now actually chases and barks at cats in the garden, whereas before he used to run in with his tail in between his legs. However, he does not bark or growl when anyone gets close to us, so unfortunately I can't give you any advice.
Hope you get it sorted
