Yep. My dad walked in on me masturbating in high school. He didn't understand why I was yelling at him to "get out", for a couple of minutes. I finally had to yell, "I'M NAKED, UNDER THE COVERS, IN THE MIDDLE OF THE DAY, WHAT DO YOU THINK I'M DOING?!?!?!" He then sheepishly closed the door. Poor guy. lol I've had people walk in on me having sex, but it has never really bothered me. I'm not the one doing anything wrong.