>Alex Heney wrote:

>>...
>> Because it is a *change* to the existing situation.

>
>Laws change all the time, but we are not forced to put up signs to tell
>people the law has changed. Normally there are adverts on TV and the
>like when there is a major change and I am not expected to contribute to
>the cost of advertising (i.e. forced to display such signs).
>

>> And because it is not illegal *everywhere*.

>
>Its illegal in *every* office and *every* enclosed public place both are
>pretty obvious. I can understand some places wanting to put up signs if
>they are somehow borderline obvious, but an office is an office.