"Please explain," Seven requested.

Chakotay looked up from his meal. "It's an old Earth tradition. To be honest, I don't know it's origins."

"It is customary during this holiday to attire oneself in a whimsical costume?"

He shrugged. "Usually the children dress up. They go from door to door and collect candy. But since there's only one child onboard..."

"Mr. Neelix has extended the custom to all crewmembers," she finished.

Chakotay nodded and lifted his fork once more. "Know what you're going to wear yet?"

"Mr. Paris suggested that I wear ... 'my birthday suit'?"

He nearly chocked on his food.