When are bombs OK?

[Marquesas]

Just for the curious, there are other improvised weapons, the ol'staple staplegun, the flame thrower, the whatever-that-one-thing-is-you-would-make-with-a-workbench-but-can't-cause-nobody-told-me-the-secret-recipe, even the humble pie can be very effective at disabling somebody wearing a helmet.

This is exactly how you should be doing it.