Just two weeks ago I worked with other students on a university project. I left the room for a short time to buy some hot chocolate (no coffee!) the next day one of my "coworkers" showed me my twitter timeline with the last tweet like "waifu #3dpd" or something like that. And yep, I deleted it. I was about to change my password, then he stopped me and told me he did that directly on my pc in this short time. It was a bit funny...