I'm just the same, I just hate it when people ring at the interphone of my apartment. People I know always call me before they come, that being friends and family, I'm always ok to welcome people over, but I hate it when people just show up. And very often it's people trying to sell stuff, or crazy Jehovah witnesses or ret*d Mormons.
Has for my postman when he has a package, I agreed with him that he rings 3 times quickly so I know it's him, otherwise when it's another postman I don't answer and let him put a notice in my box and I'll go pick up my package at the post office the next day. Has for UPS, DHL or FedEx, they usually call before coming, and usually I pretty know which days they will be coming. And it's not because sometimes I'm not dress appropriately because I don't care, it's just that I hate being bothered.
But recently I almost got finned, in France you need to pay a television tax, if you own a TV (doesn't matter if you use it to watch TV, or just to play DVD's or play video games or use it has a computer screen) you need to pay annually that specific tax, and I didn't declared I owned a TV, and so a tax controller came over to see if I actually didn't own a TV, and she rang and the downstairs interphone and I didn't answer, but she managed to enter the building and rang directly at my front door, I didn't answer but knew I was there. And she ended up leaving a notice in my mailbox saying she came, she knew I was home, could hear the TV and told me I had 1 week to regulate my situation and declare I had a TV otherwise I'll be finned and charged 5 years worth of TV taxes.
_________________
Beauty will save the world -- Fyodor Dostoevsky