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.
Not bad, seeing through 
my act so quickly.
Eres muy hábil para haberte 
dado cuenta de mis intenciones.
Vaya, me has cazado enseguida.
Você é bom por ter 
percebido o meu truque.