Last time when I was driving a FIAT 3-tonner, I horn at least
every 5 minutes. To warn motorcycles and cyclist. Sometimes is to
warn slow moving vehs on my left when I'm over taking them.
According to high way code ( SAF vehs ), I'm doing the correct
thing. That is so call defensive driving.
For those who want to know wat is roughly offensive driving, take a
look at some taxi drivers. Thats called offensive driving;
speeding, failure to give early signal, tailgating, fail to slow
down when approaching road hump etc etc.