Add to the list any client that tells you how easy a project should be: "I need a widget that does A, B, and C; it shouldn't be too hard, just a couple lines of

Add to the list any client that tells you how easy a project should be: "I need a widget that does A, B, and C; it shouldn't be too hard, just a couple lines of JavaScript." No matter how low the estimate you give them, it will be too high because it's "such an easy project."