Well worth the read whether you're a designer or in a position where you're providing the feedback. It just might save your next project from looking like a mullet.

“John in marketing wants to be able to log in directly on the home page, but Tim in Engineering would prefer it on its own page. Can we compromise?”

No. We cannot compromise.

If you tell your barber that you like it short, but your significant other likes it long, you’re gonna get a mullet.