HELMETS are allowed only to the following, and never to Tourists:

1. GUARDS, particularly of the TOWN WATCH, so they can shove the Helmet back and scratch their heads.

2. Vestigial Imperialists (see VESTIGIAL EMPIRE) so that it can be surmounted by a plume of horsehair.

3. BARBARY VIKINGS, to carry the necessary horns.

4. The forces of the DARK LORD, so that they can have the visors down and behave like automata (faceless (OMT)).

5. Foreigners, so that they can be a peculiar foreign shape.

6. Just occasionally ARMIES, if the Management is intending to pour boiling oil on the beseigers.