CIV IV Warlords--Vassal States

[thehappies]

I'm getting beaten up in a single player game and I want to become a Vassal State of one of the stronger Civs so that hopefully he'll beat off some of my enemies and allow me to recuperate. I got them to adopt the vassalage civic, but I can never seem to see an option where I offer to become their vassal. I can see the option where I ask them to be MY vassal state, but how do I offer to be THEIR vassal state?

[Blaupanzer]

If you were able to do this, it would amount to surrender. Thus, you cannot.

[rah]

Yeah, it would make that domination win a bit difficult I would think.