I don't know the rules of grammar. If you're trying to persuade people to do something, or buy something, it seems to me you should use their language.

Sound an alarm! Advertising, not deals, builds brands.

Any fool can write a bad advertisement, but it takes a genius to keep his hands off a good one.

The best ideas come as jokes. Make your thinking as funny as possible.

If it doesn't sell it isn't creative.

The consumer is not a moron. She's your wife.

The consumer is not a moron she is your wife.