ETIQUETTE TIP #107:
Remember, the obligation to be courteous shouldn’t stop in the workplace. For example, ladies, if offered a relaxing backrub, it’s annoying when you immediately assume it’s only offered as a prelude to sex.
In the same vein, it’s just rude to respond with a barrage of questions like “Who the hell are you” or “How did you get into my house?!”.
Rob Jones for President 