I never hacked anyone's account but I was a teacher at a Community College. They had a dial-in bulletin board in the 90's. I was tasked with reading people's emails for legal purposes looking for illegal threats or harrassment. It was a part of the end user agreement that their emails could be read.
People are boring! I'm not the person that is interested in other people's lives so I really didn't care much of what people did but damn, these people really think a lot of their little events.