You walk into the classroom to see the class already seated. You walk to the front, standing behind the previous teachers desk, which is cluttered up beyond belief.
"Hi i'm Troy and I shall be taking your history lesson" you say sitting down and trying to find something among the clutter on the desk that will tell you what the class were doing last lesson. After realizing that it was impossible to find anything among the mess of papers on the desk you decide to ask the class.
"So can anybody tell me what you were doing last lesson?" You look around and see both Kelsey and Geneva with their hands up.
"Yes, either of you"
"We were doing WWII" says Kelsey
"And the dropping of the A-Bomb on Nagasaki and Hiroshima" adds Geneva
"Good" you reply "Continue with that" and you sit down and begin to read a book

You look up a few minuets later to see Kelsey and Geneva whispering to each other, Giggling and grinning deviously. What will you do?