You want the idea to succeed, of course. But you have to make sure that you know what metrics on what criteria qualify as a failure. Eric Ries says it best:

“Unfortunately, if the plan is to see what happens, a team is guaranteed to succeed – at seeing what happens – but won’t necessarily gain validated learning. This is one of the most important lessons of the scientific method: if you cannot fail, you cannot learn.”

Source: The Lean Startup by Eric Ries

Have you asked this question? How did it go? Do you have advice for how best to ask it? PLEASE RATE! AND WRITE A REVIEW (in the comment box below)!