Cleanliness is key. Keeping the udders clean before milking helps in preventing contamination of the milk. And being able to recognize any signs of illness or injury in the cow's udders can also affect the milking process.
Definitely fiction. Dexter is a fictional character and the storylines are made up to engage and thrill the audience. The events and scenarios presented are not based on real-life occurrences.
In this story, Dexter might be a character who is on an 'ego trip'. He could be someone who is ambitious, perhaps overly so. He might be constantly seeking validation, power, or recognition. His actions throughout the story could be a reflection of his egotistical nature. For instance, he may strive for success in his career or personal life not for the intrinsic value but to boost his own self - image and satisfy his ego. His character development could also be centered around learning to control or reevaluate his ego as the story progresses.
First, make sure the cow is in a clean and calm environment. Then, wash the udder thoroughly with warm water. Next, gently grip the teat and start milking in a rhythmic motion.
Probably 'Dexter by Design' is also among the popular ones. It has a great plot that involves Dexter's interactions with other complex characters and some really exciting and unexpected events.