I'll add my horror stories to this . . .
Not all guitar related, but indulge me a bit . . .
Started over a year ago, my mother ordered a Tree Lounge for my step-father for Christmas and had it delivered to my house (actually, I ordered it so if he saw the credit card bills he wouldn't see it). UPS, of course.
Now keep in mind this is a $700, very LARGE piece of gear. It was left on my porch, as you've all had happen. But the kicker was, I was home when it was dropped, no knock, and since I didn't know it was there I didn't discover it until 6 am when I left for work the next morning.
Also note that I had gone out at around 7 PM for food, no package that late so it had to have come some time around 8 PM!
I went to UPS personally and complained about this, and was told that it's standard policy. I was also told that I could request that if no one is home to recieve a package in the future they would give the driver instructions to bring the package back to the wearhouse where I could pick it up personally. I asked if this could be arranged as a standing order for my address, not on a delivery by delivery basis and was told I just had to fill out the forms, and yes, all packages would be returned to the wearhouse if no one is home to sign for them. It's a standard, "signature required" arrangement.
So I filled out the forms.
Next package from UPS was just some computer software, small package. Again I was home, had the front window open, saw the truck pull up and as I was getting up and walking to the door, watched in horror as the driver stopped short of my front porch steps and THREW the box on my porch.
Landed with a thud and dented the corner. By the time I got moving again after the shock and got to the door he was already in his truck and gone.
I filed a formal complaint about that one, to no avail. The driver denied it, of course, and said that no one was home.
Next package, I was home, Mom was visiting, had two friends from out of town staying with me and another friend just happened to stop by, so 5 people at home . . . again, my nice new UV1000C was left on my porch, with the LIE that no one was home. No knock on the door, nothing.
Last package I was home again, saw the truck pull up and decided to watch and see what he did. He walked up to the porch, tapped on those little pads they have and left the box on the porch. I rushed out of the house just as he turned and said, "Hi, care to tell me what you're doing?"
"I'm leaving your package."
"You are aware that I have a standing 'signature required' for this address, aren't you? It should be in your little computer."
"No sir, doesn't say that here."
"Okay, forget that for now, you didn't even knock, I'm HOME as you can see."
"I rung the bell."
"WHAT BELL!?" There hasn't been a bell on this house since I moved in!" I looked at the front of the house, all around, "Show me what f**k'n bell you rung!"
"Sir, if you're going to get abusive I'm just going to leave."
"SIR, if you DID YOU JOB CORRECTLY I wouldn't be so upset."
He didn't like that and just left. Again I went to UPS and filed a formal complaint, that I'm sure nothing is going to come of.
Sorry about the long post, but this is something I've been stressing over for a long time.