Hah! It is to laugh. I was in the 326 FIS and working with the SAGE
site at Kansas City (RG AFB)in the early 60s. They were having a
systems test exercise and one controller was running a (simulated)
Bomarc. Somehow he hit the RTB command and Lo! The Bomarc did a 180
and headed back for the barn. That caused a real loud fuss and some
hasty changes were made in the program.
Walt BJ