Random phishing scare of randomness: Tuesday night, after 5pm, I got an e-mail from the UPS Store, confirming that my mailbox had been renewed for another 3 years. Looked official so I went to my laptop to do more research. E-mail and the formatting all exactly matched previous renewal messages, hovering over links showed the actual link address was proper. Checked both my credit cards and confirmed there had been no unexpected charges. So Wednesday I drove over and showed them the e-mail. After 5 minutes and a conference of a couple of the staff, they figured out the night before the person who had the mailbox next to me had renewed their box and somehow the employee who processed the order had credited it to my mailbox.
Looking at the e-mail initially I really couldn't figure out any way a scammer could profit from this but it's better to be safe than sorry. The staff were very grateful that I'd called it to their attention and, believing sincerely in karma, it was the right thing to do. That said, if I was walking down the street and found a sackful of money, that's "finders keepers".