Just a bad day!

Well... the question that I needed a popular opinion for is - If someone had a bad day, does it allows him/her the privilege to be rude to others?

I think I have my ample share of 'I-Hate-Everyone' days... might have been triggered by incidents or people. Do I have the luxury to spread the foul mood around? Well, this mortal, was very recently, on the receiving end of such a thing and that started my wheels rolling.

What is the ideal way of dealing with such a situation? I, usually, declare it upfront... bad day, monstrous me... you don't wanna talk to the zombie right now. But then, there must be other ways of dealing with it... Calling the wiser beings out there...be kind and fill me in, will ya?!