Top tip don't take any marizipan with you on x-ray it looks exactly like plastic explosive.

It is a very cruel trick to play on fok you don't like.

Another semi popular trick on ships is the shim brass gun. Cut out a shape of gun/knive from shim brass and then stick it in intended victums bag hidden in book or something.

The most popular is the heavy bag. Just before intended victum leaves ship normally a large lump of metal is inserted and lots of giggling as person sturggles off with bag. Some poor victum flew all the way home with a 12inch steel blank in their bag.