Reminds me of returning home from Japan a number of years ago when "Pac-man" had just become popular in America. I'd bought a small handheld Pac-man-like game and wrote it down on my form.

The agent asked me what I was bringing in, without reading my form, so I mentioned the game. He said, "That's not allowed." I pulled the game out of my bag to hand over and he looked across the room avoiding me and said, "I don't see anything. I don't see that." So I put the game away and continued on my way.

But I felt guilty every time I played afterwards.