Also, there are the ones who show you just what you will or will not stand for; you will discover your boundaries! One guy irritated me so much I almost lost my temper; he darned near ended up being thrown threw a window twice in one week. As it was, the second time he irritated me I hurled the ultimate insult at him - without realizing it was the cruelest thing anyone had ever said to him - by yelling at him, "You pathetically lousy excuse for a Veteran! Get out of my sight!" and then I hissed at him.
He left and has made sure he never came near me again.
No one wants me hissing.