Unfortunately, most people are good, and they assume everyone else is too. Karma is real in my opinion, but we still should be careful. Being a good person isn't enough in a world where predators are often allowed to roam free. Sometimes they are in charge too.

Your advice is very good too. If you are going on a vacation or your house will be vacant for more than a normal work day, don't advertise that fact. I'll do a post about this topic in the future for us all to delve into it more deeply!