It was my Father-in-law. He filled up the dishwashing liquid bottle with water and put it in the freezer, intending to use it to keep food cool in the esky. If only I had poured my drink out into a glass, like people do, I would have noticed the consistancy and been suspicious. As it was....I had to suck hard to get anything up the straw and did it several times....can you believe that crazy because when drinking from straw, you don't really taste anything straight away.