explosives enthusiast

Highly entertaining but “living extremely dangerously” person who loves to blow things up --- without proper preparation or training --- just to hear the huge thunderous booms. Usually has lots of buddies --- other equally careless/macho guys who pal around with him and assist him with his gloriously noisy tasks.

from "The Red Green Show" Patrick McKenna as Harold Green: Okay, it’s time to play the Possum Lodge Word Game, and playing for tonight’s grand prize is local demolitions expert, Mr. Edgar K. B. Montrose! K.B. stands for “Ka Boom”
Graham Greene as Edgar K. B. Montrose: Oh, I wouldn’t say I’m an explosives EXPERT, Harold --- I prefer to think of myself as just an explosives ENTHUSIAST!
Steve Smith as Red Green (in a tone of slightly wary sarcasm): Ya got a LICENSE to use high explosives, do ya, Edgar?
Graham Greene as Edgar K. B. Montrose (looking innocently puzzled): How do you mean?