Time to review my home defense plan.
Just remember: many people don't respect boundaries, and that includes people other than the criminals who might want to rob or hurt you.
I've also had solicitors walk inside my fence and around to the backyard -- ostensibly to look for someone after trying to get someone to come to the gate. Why? Trespassing on someone's property is not the proper way to ask someone to listen to your sales pitch, charity plea, or whatever else.
I have a feeling the man was looking for an easy target, and a house with no one answering the doorbell and a 6-foot fence to hide behind was attractive.
I happened to be taking a nap, but the camera app woke me as he left. Checking the cameras, he didn't do anything other than trespass -- but I think he spotted the backyard Ring Floodlight Cam and decided to leave.
Whether or not he was there to do something bad, it seems to be a "thing" to walk onto people's property that's totally enclosed by a tall fence for any reason at all. I guess some people's wants and needs are more important than my desire to keep people out.