For an unknown reason, Connor decided that he wanted an ice cube. Predictably, after walking around with it in his hand, it got cold. So he handed it to me... Y'know, like you do.
After asking him repeatedly to get the empty cup from across the room (distracted by the TV), I dropped it down the back of his (untucked) shirt.
One shocked look later, he picked it up again, and was right back where he started. Oddly (you might say), it only took telling him once to get that cup...