A chewing gum bug is a practical jokegag used to play tricks on people, usually adults. The appearance is of a 5-pack of chewing gum, with one stick of gum remaining. The trick works when the prankster tricks the victim into pulling out the last stick of gum. A small rubber bug, (folded back to fit in the pack), springs out and smacks the victim on the finger he or she used to hold the fake stick of chewing gum. It does not hurt or injure the victim, though it can potentially annoy the victim. Some variants deliver a mild electric shock, or set off a cap. After a person touches the chewing gum bug, he also may report a "tingly feeling" similar to pins and needles.