"Pig-Pen" is a human soil bank who raises a cloud of dust on a perfectly clean street and passes out gumdrops that are invariably black.Charles M. Schulz on "Pig-Pen"[1] "Pig-Pen" is a supporting male character in the Peanuts comic strip by Charles M. Schulz. He is best known as the character with a cloud of dirt that constantly surrounds his body and follows him. "Pig Pen" first appeared on July 13, 1954. In his first appearance, he tells Patty, "I haven't got a name . . . People just call…