Let's try a challenging thought experiment.
I'm going to pick a number between one and five, inclusive. I'm not going to tell you what it is. Now, try to guess. Focus hard, sharpen your senses, and see if you can guess what I'm thinking of…
Cynics have already become annoyed at me. But most people, particularly if I added a little spin, would be delighted at their sensitivity and psi-power.
The point: you can easily create similar interactions in the way you do business with people. Setting up prospects, customers and bosses to be right is almost always worth the effort. It's so much more useful than setting people up to fail.
Why then, do we organize interfaces, manuals, contracts and relationships to have people fail merely because they didn't guess what we had in mind? When in doubt, make it so people succeed.