film you and your friend hanging out,
Before you show us the scene though, tell the camera that you are going to put mentos into your friends diet coke,
Have him check out your phone and give him the drink (while winking at the camera)
Have him drop it and get mad.
Then have him take it to apple and tell them it exploded in your hand and you will sue unless they give you a free Macbook and replace your iphone.
Since obviously it didn't explode, just troll the employee saying "You Mad Bro"
Label this as Epic Fail/Troll/U Mad Bro and you are set!