Open minds close open positions.
Horace is driving a decrepit old car through a rural area. He brakes suddenly when another driver comes hurtling around a sharp bend in the road in a large Rolls Royce. The driver sees him, shouts "Pig!" at him, and drives past. "Cow!" he yells back in retaliation and heads around the bend himself, crashing head-on into the biggest pig he has ever seen.
If that old story elicited a chuckle, good. We hope it will lead you to wonder what caused