If I want to talk to you, I'll buzz you!
Do no disturb; I'm in a mood where I can go with a tank through your house.
No buzz or any other greetings. We'll talk some other time!
The last one who disturbed me is still missing.
Don't bother bothering me!
DND. I'm not here! (I actually am, but I'm busy)
You're as welcome as a phone call during sex.
I don't have any, go away!