Sometimes things aren't always what they seem... Sometimes a firm will issue an RFP with no intention of actually having a contractor complete the work. Instead the firm used the RFP to validate their own approach to completing the work or come up with some ideas to complete the work. If you are a potential seller, how can you effectively respond to an RFP without giving away free consulting? Are there specific questions that might be asked in an RFP that you would hesitate to answer? Pls cite the url or references used and 120 words or less.