I'll tell a quick little true story here...Happened to me when I was in my late teens...
At that time I had a job doing plumbing end-stage "trim" work(setting faucets/toilets/etc.) in brand new homes in Katy...And for those that don't know, there are many Mexican folks who work in the new home construction industry in various fields...Anyhow, one day I went into a bathroom to set a toilet and there was a Mexican guy in there hanging wallpaper...As I was working, for some reason he asked me if I knew Spanish...I told him no and he replied "are you going to go to school to learn it?"...I couldn't believe he just asked me that...I told him no again and continued working....