Not everyone is tech savvy enough to be comfortable with a digital multimeter.
And just because the campsites on either side were wired correctly is no proof that the outlet in YOUR campsite was wired correctly.
I don't like to make plans. They cause the word "PREMEDITATED" to get used in court!
DON'T FEED THE VULTURES!
My Body is a Temple! Ancient, Crumbling, Probably Cursed . . .