very hot weather warning

The HK authorites have issued a Very Hot Weather Warning.
The warnings they issue are always just too funny.
But here in HK we do not rely on common sence, probably because at many times the locals don't seem to have any....

The Very Hot Weather Warning is now in force.The Hong Kong
Observatory is forecasting very hot weather in Hong Kong
today. The risk of heatstroke is high.

When engaged in outdoor work or activities, do drink plenty
of water and avoid over exertion. If not feeling well, take
a rest in the shade or cooler place as soon as possible.

People staying indoors without air-conditioning should keep
windows open as far as possible to ensure that there is
adequate ventilation.

The Hong Kong Observatory advises that prolonged exposure
under sunlight is to be avoided. Loose clothing, suitable
hats and UV-absorbing sunglasses can reduce the chance of
sunburn by solar ultraviolet radiation.

Swimmers and those taking part in outdoor activities should
use a sunscreen lotion of SPF 15 or above, and should
re-apply it frequently.