Reminds me of the time Pancho Villa was warring with the US Army along the Rio Grande. He got word that the US was sending Monitor-like shallow draft gunboats (think swift boats) up the Rio Grande to attack his stronghold.

At a meeting with his lieutenants to discuss strategy, one of his aides, a former naval person, suggested scuttling garbage scows at the mouth of the Rio Grande to blockade the river. Villa sneered, "Barges? Barges? We don't need no sinking barges."
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