I tend to forget to change the connectivity setting, because it sadly does not get saved.
So if a random joins, it reminds me to change that.
But honestly, I have no idea, why people join randomly a game. This is not like Diablo, where you have your own character and take it with you.
This is the main reason I guess, happend to me several times. Connectivity settings is always defaulted as open...being caught by surprise couple of time asking myself why I couldn't control Sybille anymore...connectivity setting should stay defaulted as of last saved game connectivity setting.
