Sony's policy on account responsibilty is shared within the guild. You are responsible for the actions of your toons even if you are not driving. So make sure you have a password that noone else know, and change it every once in a while. Doesn't have to be every 2 days but every few months is not a bad idea. If you see, login failures every time you log in and you didn't mistype just before. /petition it quickly. Someone may be trying to guess it. Now I know we all have others who know our passwords so on that one just make sure you are willing to take responsibility for anything that person may do.
Going to the bathroom where you feel there might be a problem....
There is a command
has been out there since eq came out. this locks the keyboard mouse input until you do the same command again. The password doesn;t have to be your account password, it can be anything /safelock igottagonow
Sony's Gm's will not cut you any slack for anything your dumb ass friend did while you were getting a drink or going to the bathroom. So protect you password like your atm pin, consider who has access to your keyboard when you are afk and report anything you think may be a problem.
Also if you see anything you think might be a problem but don't want to report it because you think you might just be immagining it and don;t want to have to deal with a mean gm.....bring it here or to /guild and get a second opinion.