17. Those Dastardly Apples
Assuming this is going off that event where razor blades were slipped into candy wrappers, it is considerate of the teacher to be warning kids to look out for them, though there is a point that you would probably notice something odd if one was put this in an apple.

Who thought this was a good idea anyway? Way to make parents paranoid for all eternity after, though razors aren’t the most dangerous things. You may end up with a split lip, but nothing too serious, just a very unhappy kid, and rightfully so.