Oh, the hiding spots are endless but eventually you will either find it by accident or find it while looking. I was just cleaning my AH's sweaters on a shelf and accidently found a water bottled filled with wine! So I wrote on it busted and put it back! Yes, it makes one damn mad but I have found that by tossing it, they just buy more.
One time, I did swap out vinegar and water for vodka just as a joke
It really does not matter where it is hidden,
Good luck and wow, never heard of the oranges thing!