The Skype calls.

They always randomly end on me. Literally me and my next door neighbor were trying to call each other only a few yards away from each other. And sine we live in the city, our houses are pretty close together. And she tried to call me, like about eight times and I randomly wouldn't be able to hear her, or vice versa.

For those that have Skype, and know the struggle, my apologies for this little Skype annoyingness.