Potion in the cave

[feklar42]

No: HPFGUIDX 133343

I just finished HBP and am still digesting...and contemplating the 
mountainous backlog of spoilers with great trepidation, but I have to 
ask, what people's theories are on why the potion had to be drunk 
rather than just poured out?  

My only theory is that is the *intention* to drink that allows one to 
bypass the barrier.  If intention were the key, it could have been 
scooped up with a hand rather than a cup or anything else.  Still, I 
was wondering why Harry didn't at least suggest trying to dump it out 
before drinking.  It seems like a pretty obvious question to ask when 
you think someone is about to poison themselves.

Feklar