When attempting to prank your friends, stealth is key. You also have to really want to make them feel as much pain and humiliation as possible. Luckily, the existence of smartphones can help a lot.
Besides the old-fashioned and, lets be honest, predictable method of simply hacking a friend's Facebook or Twitter, the iPhone's features make it particularly well-suited for pranks.
See also: 20 Searches Made Ridiculous by Google Autocomplete
Because we're firm believers in a good prank, we've come up with six great ways to prank your friend's iPhone.
Have any more phone pranks for making your loved ones miserable? Tell us about them in the comments. Read more...