In Texas we actually have a code....it goes like this.
Before Sundown:
Hey, it’s me!
After Sundown:
HEY IT’S ME DON’T SHOOT! I AM COMING IN THE HOUSE! DID YOU HEAR ME AND UNDERSTAND IT IS ME AS I STATED EARLIER?
I know that, if I lived in a home where a somebody was a potential Barney Fife, I’d be making sure that he knew I was on my way home.