Hayate cannot bring himself to return to the Sanzenin mansion after he damages the cashmere coat that Maria lent him. While contemplating on what to do, he meets the "generous" people who tried to take him away and ends up fighting them all!
It shows just how serious he is 
about his job as Nagi's butler...
Eso demuestra lo serio que se toma 
su trabajo como tu mayordomo.
Ele deve levar a posição dele como 
seu mordomo bastante a sério.