[WIdo]

I really apreciate the new Messages application. But my Playbook is shared with friends and children. We cannot create multiple accounts for each person but I was wondering how to "log off" from my Messages for confidentiality and security. The only way I found was to delete each email account in "option: accounts" every time I lend my tablet. And to reinstall my email accounts again later. Long process and not practical. I could not find any other way. Maybe there is a simpler way to disconnect. Any clue?