I also have been taken by credit card and i have had one with pay pal because i sent it without a signature because the customer said there would nobody home to sign for it .
Well UPS said it was left at the side door of the house but the customer said they didn't get it . The strange part was i offered to ship it again and file it with UPS and they said no they just wanted a refund that they had to get it somewhere else .
I did file it with UPS and never got anything because they say it was delivered to that address. I LOST
Now unless i have dealt with the person before it has to be signed for it is not easy to get your money the credit card companies will take the side of the card holder if it is over the net.
I have a lot of customers that want me to ship like this so most of the time i ask if i can ship to there work place because i need a signature .