Elizabethtown College student Allison Markow smiles, with just a tinge of amused embarrassment, as she remembers her bubble gum disaster. She was 8 or so, she said, and she was not allowed to keep gum ...

Bubble gum elicits a unique memory for everyone. Maybe you recall sharing it with friends during recess, buying a large pack with tooth fairy money, or trying your first piece of blue raspberry Hubba ...