I did seriously upset Airport Security several years ago. Had on an over-sized raincoat with lots of pockets all over. In those pockets I'd tucked 14 Cadbury bars (had to get one of each flavor), plus some Easter Eggs. What I didn't think of was they were each wrapped in foil.
Even after I took them all out, explaining I was a grandmother on the way home, they insisted on another very thorough wanding.
Romelle
My choice when main-lining chocolate is those big Ghardelli chunks one can buy very reasonably at Trader Joe's.