Horn OK Please 2

Horn OK please is a phrase painted on almost all commercial vehicles in India, such as trucks, buses, taxis.

The origin of this phrase is unknown. No rules in India mandate the use of such notice, or recommend honking your horn when approaching or passing a truck. Still, every truck driver includes "Horn OK Please" in their set of elaborate custom designs and most drivers will indeed honk their horns all the time, more out of habit more than out of need. Interestingly enough, the system seems to work.