gabbo529 writes with this excerpt: "It's only a speck but some moon dust from the original Apollo 11 mission is back in NASA's hands. The speck of moon dust was only one-eighth of an inch (3 millimeters) wide and was attached to a transparent piece of tape. To an auction house in St. Louis it was worth between $1,000 and $1,500. However, NASA got wind of the dust and was able to get it back."
If it happens once, it's a bug. If it happens twice, it's a feature.
If it happens more than twice, it's a design philosophy.