Scared me
About a half hour ago (maybe 2:10 AM) I was awakened by something ... after gaining consciousness I identified the sound as a series of knocks or taps on the house next door. A few seconds later, I heard three taps on my own house. Possibly on the front door, but didn't quite sound like knocking. Perhaps somebody is going around the neighborhood checking doors.
Reported it to the police. Since nothing untoward has occurred since then, I probably should go back to sleep, but that ain't gonna happen.
Might as well start the coffee, stay up and get some work done.
This neighborhood is getting less safe. A somewhat similar incident occurred in May.
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Update: It appears that the sounds were made by a
city water meter reader! I went out in daylight to examine the location where the sounds had come from. The little black water-sensor box was open. In this context, the tapping sounds are familiar. But when you're awakened at 2 AM, your first thought is emphatically not "Oh, that's just the meter reader."