Your grandparents and great grandparents fighting in World War II were hit with just as much safety rules as troops are today, it's just those rules rarely make it to the history books.
But they weren't always given their safety rules in boring briefings. When the 1940s War Department and Department of the Navy really wanted to drive safety rules home, they made snazzy safety videos and posters.
The Navy used "Ensign Dilbert," a soup-sandwich who always breaks safety rules, to highlight the grisly results of incompetency in aviation.
And Dilbert does some truly stupid stuff. He mishandles his weapons, tows aerial targets into ground crews, and even accidentally kills a civilian his first flight of the day. And the Navy isn't afraid to show the (PG-13) bodies of his victims.
Check out the Dilbert video on aerial gunnery, Don't Kill Your Friends, below: