Dynamite brains

At school we had a teacher named Dynamite Brains Taylor. I'd forgotten all about him and his marvellous epithet until I heard this exchange on radio, which speaks volumes about the dominant ideology of our society, and which I record here from memory:

Radio jock: We have Margaret on the line, another caller in our quiz, "What is the greatest invention in history?". We've had some great nominations: the computer, the washing machine, fire, writing ... Good morning, Margaret. And what's your nomination?

Margaret: I think explosives, Brian.

Radio jock: Good one, Margaret. [Spoken sincerely] I guess without explosives we'd still be in the age of bows and arrows ...