I was given a small official plastic bag for my small tube of shaving cream at Bristol last week by a helpful security wench. The security of the Western world was duly assured. Nothing was said about the long heavy battery on the back of my laptop that unclips in a second and becomes a very effective cosh. It's also very handy for smashing a mirror in an aircraft lav and a piece of duct tape for fixing a shard to the battery would make a very nasty weapon. The shaving cream was in polythene so everyone was happy.
