Trent - Nice work and appreciate the response.
If we accept then that the crack troops of airport security are indeed inspecting our aerosols for DG purposes (and that they have been suitably trained for that purpose), it can only be a matter of time before they begin:
1) Inspecting spare laptop/PED batteries to ensure adequate covers are in place so as to prevent short circuits;
2) Confirming that said batteries have an output rating in the range 100-160Wh;
3) Checking hair curlers for fitting of suitable covers to the heating element; and
4) Physically confirming through demonstration that all matches are not "strike anywhere".
Bugger - now I've gone and given them ideas too!