The Unbreakable Vow

[merpsiren]

No: HPFGUIDX 138152

My husband and I were just discussing this and I wanted to throw an
idea out for everyone to chew on...

When Snape made the Unbreakable Vow with Narcissa promising to protect
Draco, and to step in if Draco was unable to complete the task set him
by Voldemort... 

I note that there are no time restraints in the vow.  Example: I will
step in to kill DD before the end of June.  Instead it seems to be
open for the rest of your life... as long as Draco is trying to harm
DD, I will step in to help.

  1) Draco attempts to attack Dumbledore by sending him the silver and
opal necklace... and is "unable to complete the task"... nothing
happens to Snape when he doesn't step in to help Draco complete the
task.  

  2) Draco poisons the oak-matured mead that Slughorn intends to give
to Dumbledore as a Christmas gift... and the gift doesn't end up with
DD, Snape is not stepping up to that attempt on DD life... and Snape
faces no reprecussions from the Vow.  

It appears that the vow is so open-ended that it seems to create a
GIGANTIC loophole.   

So... for those of you who believe that DD may still be alive and
faking his own death (I'm undecided) this is the possible loophole
that would allow for the charade.

So, who enforces the vow?  Who is to say you have met up to the terms?

-Kris