My turn to ask for help interpreting a behavior...
I have a pair of neutered sibling cats, Harry and Hazel, about 7 years old.
Periodically -- usually during a mutual grooming session -- Harry will grab Hazel's throat -- not scruffing, but under the chin as if going for a choke attack. He seems to be being gentle about it, and Hazel doesn't actively complain -- she'll go right back to washing him, even if he does it repeatedly -- but to human eyes this seems rude.
I've never seen Hazel apply the same hold.
Is this just ritual dominance/trust assertion, and should I stay out of it even when it happens virtually in my lap? Or should I discourage, since I'm supposedly the dominant cat in the clowder? (Dogs think they're inferior humans. Cats think we're incompetent cats.)
Not a behavior I've observed before, since in the past I've only had one cat at a time -- so I'd appreciate input from folks with years of observing interactions. My ape instinct is to say "quit that", but my cat instinct is that as long as they're still friends they should work it out themselves.