-Attention Cab Drivers - the horn is not a form of advertising. Don't honk at me to advertise that you are a cab and that you want my business.

-The horn is not to be used to vent anger.

- The horn is used incorrectly by people with road rage

- The horn is loud and make you jump

- Are people honking at me or someone else? You can't tell.

- The horns add more noise to the already polluted world