There's nothing more startling than stumbling upon a hamster ball with its door flung aside and no hamster to be found in it. This time it isn't Momokuai but AnAn! AnAn who spends all her time nibbling/sleeping and very little time on plotting (to escape) --- I am surprised indeed. Before panic set in I remind myself that I live in a miniscule apartment and she can't go very far. I calmly took food out of the fridge (cat biscuit always does the trick), shake the bottle noisily and lo and behold, she comes out for a nibble. QED - quite easily done.