"This gun is too big!" she exclaimed.
So she picked up the second gun
"This gun is too big, too!" she whined.
So she tried the last and smallest gun
"Ahhh, this gun is just right," she sighed.
But when confronted later by the angry bear, the tiny round only pissed it off, and the bear ate Goldilocks.
MORAL OF THE STORY, for primary self defense, bigger is better.
(and bears who live on porridge are going to be hungry).