Keeping other Sims out of apartment ... ?

[Naria]

Why is it that there isn't a lock on the door to keep Sims from other apartments on the lot out of your apartment? My Sims never even greet these people, but they find it fit to walk into my apartment and start taking showers! Do they not have their own showers, I mean honestly ... 

I figure that the lock "Lock for all Sims" would work, but then the Sims that actually live there wouldn't be able to get in. So how do I keep them out? Is there a way?

[tyana]

I always just use allow house hold only lock, and my visitors that i do greet are allowed but others not... This is probably the most biggest, annoying flaw of apartment life

[Naria]

I always use that one on regular lots, but that does not appear as an option on apartment doors?

[lissachicka]

I just noticed that, too. Luckily, I WANT my neighbors to interact, but not like that. I clicked on my door on my apartment, and I had the option to choose to lock it for only my family members.

Now, if I could only get my kitten to eat BEFORE he is starving to death.