In the movie, “Signs”, one of the characters, Bo, has an interesting habit of leaving half-full glasses of water lying around the house. To Bo, the water “tastes funny” after she drinks only a few sips of it. This odd habit becomes instrumental in the story’s ending. (I will not spoil it for those of you who have never watched this film!)

Incidentally, water can taste funny due to substances and/or forms of life found in it.    Too bad Bo wasn’t a scientist.  Perhaps she could have extracted DNA from each glass of water and found out the kinds of organisms More >