You may not realise this but mobile phones contain demons. Makes sense when you stop and think about it. I have to curse my phone to get the touch screen to recognise that I'm trying to press a button. You can exorcise the demon from your phone by sticking it in a microwave on high.
Here's some footage:
Despite the dramatic results of microwaving the phone, the video is not enhanced with special effects at all. From the video, we can see that the microwave heats the phone to the extent where the demon thinks it's back in the hell-dimension and comes out! You can see it scream and get extra cranky when it realises it's been tricked.