X-ray fracture joke

X-ray no fracture - shake hand with phone and create sound of bone's crack! Joke for drawing.
Pretend you sprained foot, and quietly move your phone up and down - scare friends with a loud crack! Tell them that you need a doctor, and when the x-ray will not show fracture, tell what the app is a joke! Let's not be afraid, no surgery.
You can even take a lesson, just shake the phone from side to side to hear the loud sound of crack. Take care of the nerves of teachers and parents! Be careful, watch your step and don't break bones, the fracture is very painful.
Bear in mind that scanner x-ray will still reveal the truth. Cheat is not good! Don't skip school again and listen to your parents and a crack of fracture trick friends! To do this, shake hand with your phone and pretend you're hurt. A prank application.