Morse Code

My husband knows morse code...but I do not! Does anybody use this anymore? My poor husband was stuck on the roof while hanging Christmas lights for over a half an hour. Apparently he was trying to get my attention by banging on the roof in morse code. I seriously had no idea. Poor guy! He is deathly afraid of heights and the ladder slipped into the ground.
Since his wife never responded, he had to brave it and get down without any help.

Makes for a funny Christmas story though. :)