ctwo
Merely Rhetorical
...he tried to show me how to trip an outlet to make it easier to swap out instead of guessing what breaker. Well...that little outlet did not want to be tripped and my dad laughed. Turns out it was a 20a breaker and probably should be a 15a since it's in the kitchen.
There are ways...
I remember my physics professor described how to tell if the bulb, lamp or circuit was the culprit. See, if you remove the bulb, you can stick your finger in the socket by first touching and maintaining contact with the outer threads as you slide your finger in deeper to make contact with the center conductor at the bottom. You'll feel some tingling if the bulb was the problem.

Surely, everyone has a circuit breaker tester. And I have a DMM that measures up to 20A in continuity mode. Wouldn't go any higher than that

