In my gym shoe, in my purse (it fell in), in the bathroom.
When my blue ipod nano disappeared, my nephew told me a few days later that his mother (my SIL) had just "bought" a blue ipod nano. A week or two after that, it was exactly where I had left it, but with a napkin placed neatly on top to suggest it was just hidden.
Sorry, lol, I needed to vent. This was like 3 years ago, I should be over it.