I recall a particular field in Utah, so heavily infested with ground squirrels that growing any crop there was futile. I shot it several times each Spring with one other guy. We called this 100x300 yard strip of pests the "Two Bricker" because we could each shoot a full brick (500 rounds) walking out, and another one on the walk back. And when we'd fired all 2,000 rounds and looked back, we could tell no difference in the number of scurrying bodies in sight. (No, that's not because we missed a lot. Neither of us missed many at all.)
I'd hate to know what such a day would cost us now.
