This common distinction is not necessarily hard and fast. The hard categories are best seen as poles on a continuum. When men drink whiskey, it is always in a shot glass, and they always drink it in one gulp. If they are wimps, they will gasp for air, then have a coughing fit. If they are macho, they will wince briefly, flashing clenched teeth.
Bombs always have big, blinking, beeping timer displays.
Explosions always happen in slow motion. When an explosion occurs, make certain you are running away from the point of detonation so the blast can send you flying, in slow motion, toward the camera. Pedestrians in Hollywood have the world's best reactions, so don't worry if you have to drive down a sidewalk. Mr. Pappodopolus is quite used to having his fruit cart smashed, and despite his gesticulations and curses, he always manages to get out of the way in time. They're free for the asking.