Lock your doors.

[Mazdek]

We have keys, from quests and conquests and such. Why can't we lock doors behind us?

 

I wanted to lock my companion out of Sister's room when I killed him so that they wouldn't steal my kill. ;) I realized there was no way to do it with your keychain, so I went to the console. I had seen that there's an "unlock" console command, so I clicked on the door and typed 'lock' in the console. It tells me "door locked at level 0." So I try again with "lock 100" and get "door locked at level 100."

 

Would it be difficult to throw a mod together that lets you lock doors to which you have the key already? And if you want to get real fancy, let us use the lockpick animation to lock a door you don't have a key for. ;)