Damn, thats a tuff question sir. Well, i wouldn't mind killing a girl just after she finished studying in a college library. She would close her binder and look up at me with a sweet smile. She would know what was coming, and it wouldn't bother her. I'd kiss her then stick a gun between her lips. As the liquid of her veins sprays all over the bookshelf behind her I'd realize, she wouldn't need to worry about that bio exam she had the next day.