*You can't make a private topic in a village different than your own.
*Private Topics can't be made without valid reason. Meaning you have to really be somewhere no one can find you or only certain people actually know of how to get there. For instance, an actual hideout in a very discrete location may qualify for it to be a private topic. If someone can logically find the location and enters the topic, then its not private. Private topics depend on location basically.
*Putting things like 'Bob and Sue Only' or 'Genin Only' or 'Invite Only' doesn't make it a private topic. The location is what makes it private.
*For those that put 'No Killing' in topic titles. That does nothing. If someone decides to enter your topic and murder everyone in it, they have the right to do so. You can not tell people what their character can not do in your topic. Just like they can't tell you character to sit there and stay defenseless while they murder yours. So yeah, if you don't want to die, defend yourself or don't start a fight. If you want to fight without dying, then post a Practice Fight(PF).