LOL.. one time, while resident... I remember bringing down SaranWarp and Aluminum foil.
The Customs fella... seemed to "understand" the need for SaranWrap... but looked at me and asked... "You brought Foil???"
((foil being a basic island "staple" once upon a time...))
....
Sometimes... there's simply no rational answer.....
perhaps: "Had empty space in the luggage...(???)"