Mum : Hey, should I upgrade the latest iOS 6 on my iPhone 4?
Me : Yes mum, you should.
* Few minutes later *
Mum : Hey, where’s my home screen? Why did it turn all black? And … there’s a cacing (worm) on my phone? Yeeerrrrrr, how to get it off my phone? It’s moving somemore! Will it get to the apple?
Me : LOL LOL LMAO! Mum, the “worm” is there to indicate the iOS upgrading progress. LOL CACING of all things, and NO, it will not get to the apple.
Photo was taken from this website.