Just in time for the holidays we have a new iPhone prank. If you really want to get the blood of your favorite iPhone user boiling just text them this little 5 second video clip. The mp4 video happens to be corrupt. Just 10 seconds after playing the video the iPhone that played it will begin to slow down eventually becoming unresponsive before crashing. This does no real damage to the phone. As soon as the phone is powered back up it will return to normal that is unless your friend decides to play the video again at which point their phone will once again crash!