Defending the Big Blind...is it even necessary to look at your cards?

[BeDoHave]

72o or AA...does it matter?

From a "defending your BB against an obvious steal" sort of game theory standpoint?

Aren't you just going to be playing the counter-strategy to his hand, not dependent on your own hand strength?

Is there anyone that does this already (defends the BB without looking at his own cards)?

I think it sounds fun and will try it the next time I play live.