I can see several factors coming into play when one character binds another, such as with rope, or handcuffs. Generally, I think most of us can assume that being bound like that is most likely an element of a Concession or being Taken Out, and the bonds will come off when it comes time. Conversely, the right Aspect means that a bound character could just buy his way out at the right time with a Fate Point.
But having rules for escaping such bonds could suit plenty of character archetypes, so if a GM opted to make it an option, how would we rule it, without creating too many rules?
I can see the Escapee's Athletics, Stealth and Might possibly coming into play. Manufactured bonds would just be a Static difficulty assigned by the GM. Actual rope-tying would be some sort of test between the binder and the victim, and I imagine the binder would use Scholarship or maybe Craftsmanship. How would we build a Stunt for people who are good at slipping bonds?
Then again, maybe it is best if this remains a function of Aspects, Compels, Concessions and Fate Points.