Hayate is forced into a situation his only viable option is to do something illegal, unethical, and unbecoming.  After being called a Mom like figure to Nagi, Maria goes to the source on information regarding Nagi’s father.
What do you mean, "of course"?
¿Cómo que por supuesto?
¡¿Cómo que está claro?!
Como assim "é claro"?