Toys in the toilet

Zoe has always enjoyed wandering down the short hallway to the laundry, from where she can sometimes see Harry the dog. If there's a basket of pegs or washing there, she'll happily play for a few minutes. I had made a point of keeping the adjacent toilet door closed, occasionally leaving the bathroom door open if the shower screen is pulled across. So I am a little surprised that twice in the last two days I have fished toys out of the toilet bowl. It was clever and funny the first time [she opens and closes the lid]. Amusing the second. But I think now it is time for a sign on the door to remind Dad/visitors of Zoe's new game.