Sound your horn when approaching a danger point or when about to overtake, unless you are satisfied that such a precaution is unnecessary. Do not take it for granted that your warning has been heard: in no circumstances can the sounding of a horn excuse a driver from taking every other precaution to avoid an accident.
Motor horns should not be used unnecessarily, and always with consideration for others, and especially for those in charge of animals. They should never be used to show annoyance or impatience.
[It is an offence under the Motor Vehicles (Construction and Use) Regulations to sound a horn when the vehicle is stationary, except when necessary on grounds of safety.]
SPECIAL DUTIES TOWARDS, PEDESTRIANS, CYCLISTS AND ANIMALS.
Respect the rights of pedestrians. Aged or infirm people and young children and those in charge of them call for your special courtesy.
Take special care not to endanger children. Remember that they are likely to dash into the road unexpectedly. Look out for school signs.
When passing or overtaking pedestrians, cyclists or animals give them plenty of room. If the roads are wet or muddy try to avoid splashing them.
Show special consideration towards horses and horse-drawn vehicles.
Slow down or stop when requested or signalled to do so by those in charge of horses or other animals which may become frightened or restive on your approach. Be ready to stop when meeting a flock of sheep or a herd of cattle or a pack of hounds.
Remember that you must be prepared to meet pedestrians and also led animals on your side of the road.