She has a male cat that's being annoyed, to put it mildly, by a neighbouring Burmese. The latter can be chased away by a water pistol or a water sprinkler, but not permanently. It comes into my friend's garden and frightens her cat. The latter is reasonablt feisty but not aggressive.
The owner of the Burmese is unresponsive to my friend's worries. My frriend's cat sometimes needs to go thru the Burmese's garden to get to and from. There the Burmede seems less aggressive, which my friend puts down to the presence of the owner.
my friend suspects the Burmese is seeking to be top of the 'pecking order' and that her cat isn't fitting in with the plans of the Burmese.
My friend's cat books don't seem to address that sort of situation.
Any suggestions for dealing with this would be welcome. Thanks in advance.