He Is Always Funny

"Hanry, you should do this presentation, because it is your turn!" Annie yelled at her partner, Hanry, really mad. They are doing a presentation in class, and Annie did most of the disscusions and presentations before. She asked Hanry to do it this time.
"No! I cannot go!" Hanry answered immediately.
"Why not?" Annie asked, "You cannot always let me do all the things."
"Well, I am funny all the time, so I cannot go."
"Then be serious this time in the presentation."
"Are you kidding me? Have you seen me be serious for once? No, I cannot do that."