I'd solve the Rubik cubes ( dead easy when you know how lol ) and then kick them around like a football - she shoots and scores, yay ! If you wanted out, you could always say you feel sick and can you go to the rest-room please ?
If you are stuck with Rubix cubes on your hands and left in a room because the doctors think you are crazy, what would you do in the room and what will make you get out of the room?
Act as normal as possible, say you have to use the bathroom, and try to sound like the woman on the news with a very calm voice:) you won't sound crazy then! ;)