I adore the Buffy & Oz dynamic, which works well because of - as you noted - their different ways of interacting in the world. It makes me think of their first encounter:

Buffy: Try it!

Oz: Try what?

Buffy: Uh... I-I'm sorry.

Oz: Still not clear what I'm supposed to try.

Buffy: Nothing. God, I'm... sorry, I...

Oz: That is a tense person.

I love Oz's very calm reaction to being grabbed by the neck! Oh yeah, and I also love the concept of a shifty bench! :)