Is there a way to log off from your Android 4.2 tablet user account?
In terminal emulator;

Become root

$ su

List users to get their ID. It's the first number listed, usually 11 for the first user. 0 is owner. Ie 11:user:10 &amp; 0:owner:13

# pm list users

Stop the users execution instance (logoff) 

# am stop-user &lt;id&gt;

Usually 'am stop-user 11'

You can't logoff the device owner, ID 0.