Annoying People

We have a woman at work, who walks in the door, smiling and greeting everyone. That is usually not too annoying, considering, I am in a fairly good mood, too, when I first arrive at work. But, she doesn't stop there... What really bugs me is her laughter. She laughs all night long. I am not kidding. She laughs at everything, uncontrollably. She laughs so hard, you would think she is going to wet herself. ALL NIGHT LONG!!! EVERY SINGLE NIGHT, FOR EIGHT HOURS STRAIGHT!!! She laughs and laughs and laughs. How in the world can anyone possibly find that many things to laugh at? I just want to throw something at her. I want to yell at her to, "STOP IT!!" I'm a jerk, right? I should be happy for her that she enjoys her job so much. I should feel some kind, warm and fuzzy thoughts toward someone who has so much joy in her heart. Well, I DON"T! Her constant maniacal laughter is driving me insane. I work in a nursing home, I raised four kids, I live near a railroad track, I grew up in South Dallas and my lullaby as a child was the sweet song of police sirens and barking dogs. I have learned to tune out most annoying noises, including a ringing telephone (while I am trying to sleep). Why can't I tune out that laugh? I think I need professional help or at least a Valium before I clock in at work. I have learned, over the past few weeks of struggling with getting into this house, how to be patient, how to be humble and how to overlook the small irritants in my life, I just can't seem to get past this. How do you tell someone to quit being happy ALL the damn time? Life just isn't that funny!!!