Dear World Outside My Front Door:

Please GET A CLUE.

If you ring my door buzzer (which I know you can hear from outside) and there is no response, and there is no visual or audio proof that I'm home, then I'm either not here or am choosing not to answer the door. Ringing the buzzer another 100 times and/or repeated knocking on the security gate are not going to change the outcome... I AM NOT ANSWERING THE DOOR.

Special added note for my gardener:
You went MIA for over 2 months last year and you have NEVER, despite my repeated requests, dropped off a bill for services - always preferring to ambush me on my way out of the house and heading to some appt. If you think I'm going to answer the door so you can present me with a $150 bill for 5 months of gardening (when you, at most, showed up 3 times), and have me pay it all at once, then you are even more stupid than I take you for. And if I go outside tonight and find my "lawn" (weeds) edged & trimmed, confirming it was you outside, but there is still no bill in my mailbox, you will be fired.