I've seen this ad on the back of our city taxis and it never fails to get my attention. The main aim in business writing is to communicate with the readers. So, if you can get the attention of your target audience with your business proposal' title, introduction or executive summary, it would ensure that your proposal gets past the first hurdle of being considered for further reading. The business owner of catchcheatingspouse.my really knows how to get our attention. Watch out, cheating spouses!