I am happy because of I do not worry about the problems. Problem solving is my jobs. I receive the problem every day from the users. Whenever there is a problem, ฉันสนุกกับการค้นหาสาเหตุของปัญหาที่แท้จริง , and then fix it. I am so happy every time when I can fix it. I think the users are happy too. This is the reason why I always enjoy with the problem every day.