The give and take of ideas is not always an effortless experience -- your ego can get involved, and trying to 'win' a debate can distort the exchange. Whenever you share ideas, you need to focus solely on accurately conveying what you think, not on proving that you're the only person who's 'right.' And you definitely can't make things personal. If a debate gets too heated today, you should be prepared to agree to disagree, and just walk away before things go too far.