My dad has decided that if I'm considering medical school and planning to live in California, I need to learn to speak Spanish. He now only speaks to me in Spanish, which is fine with me, as I really don't care all that much about anything he says, anyway. He might just as well be speaking Lithuanian. I have a sixth sense and can tell when anything he says relates to money. If such is the case, I pay attention and attempt to understand what he is saying. If it's not about money, however, I smile and say, "Si, Senor" whether he's talking about school, dinner, or a herpes virus.
Vaya con Dios.