During the supposed final battle in the bottom of Auntie's den where YOU KNOW WHO is to be rescued -- I was able to throw bottled' waters at the cage but now no matter what I do the character just CHUGS the water instead. LMFAO
Have you also tried opening the inventory - with the N key - and right clicking the bottle? I've had to do this at some point to select "Throw" for an item.