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.
You're not really relying on the 
money he stole to pay, are you?
No será que cuentas con el 
ladrón para pagar, ¿o sí?
No estarás pensando que lo pague el ladrón, ¿no?
Você não quer usar o dinheiro
 que ele roubou para pagar, quer?