I've found that my skype account would randomly call my friend, even when I was not logged on to skype. My friend texted me and asked why I called her, when I obviously didn't. But when I checked our activities log, it showed that I did. This was the second time it has happened. The first time it happened, the call went through for 23 minutes, but still, it went without me knowing or doing anything. Today, it showed that I gave her a missed call. Please advise me on this problem, it's quite unsettling.