I saw a girl crying. I asked her where her parents were, and she started to cry even more.
Man, I love working in the orphanage.
Listen up, buttercup. This joke is about a person who enjoys making orphans cry. The joke is funny because it is unexpected that someone would enjoy the misery of children. Side note: you should try reading a book, you look like you would enjoy 'Clifford the Big Red Dog'.