My little daughter surprised me by wanting to read this little book to me, in Spanish:
As a parent trying to teach my daughter Spanish in an English-dominant environment, it most often sounds like I'm the only crazy person speaking in an alien tongue. Everyone in my kids' lives (other than their teachers in school) speak to them in English, and my kids have complained that "daddy should speak English at home, because everyone else does."
It has often been discouraging (see crazy person/alien tongue reference, above.) Despite it all, tiny little moments have helped me keep going: seeing my son have a brief, 10 second conversation in Spanish with my parents; hearing my kids suddenly point out random objects and use the Spanish term; and this video.
I just have to remember that it's a marathon of a process, and not a sprint, and that sometimes being the crazy person speaking in an alien tongue will pay off. Eventually.