National Language...What Is It?

This guy Odie who works with me is from the Dominican Republic, he's been living here for over 20 years now. Speaks good English, and understands it very well. but when he gets over excited or too nervous, Upset at customers he will use I'm sorry I dont understand and walks away. Comes over to get me to help him. There are days I wish I could do the same. I wonder if I could use some Gaelic on them? I'd say Póg mo thóin!
Maria, use to work with us, then took a very long leave of absent, to go back to her home in Mexico, seems her husband and kids were all illegal and were deported. They've been all living here for years, and own a lot of land, a few apartments and a small business. Anyway we were sort of shocked to see her come wondering in to work the other day...she wasn't even on the schedules anymore.
Now if we can just keep her and Odie apart...They get together and start talking Spanish. Now I have nothing against talking Spanish, I can speak it a little and I can understand most of what they say. I think yesterday I kind of shocked them when I told them, when I replied to something they were saying in Spanish. I told them I understand Spanish a lot better then I can speak it. My Rocky was from Lima, Peru.
Nothing bugs me more then when people come to this country to live and dont want to use our customs or our language. They come here to better themselves because they are unhappy with their home lands and when they get here they continue to follow their country's old ways, and expect this country to cater to them.
When my son was 10 I took him to Disney World in Florida. On the shuttle back to the airport, he said to me Mom, what country is Florida in? I said David you know what country Florida is in. He said I thought it was in the United States but did you notice not one person there spoke English? That was 18 years ago...and you know what...he was right back then and it still holds true today.