Yeah, they would answer their parents and grandparents in English a lot even if they got asked something in Spanish.
On a somewhat unrelated note, Puerto Rican chicks are pretty ****ing crazy.
When I used to live in the Ghetto
I sort of had a puerto rican girlfriend when I was -8 years old-, I had just come to America for 1 year, so my english wasn't that great..
We'd play my computer back then, a pentium 75mhz.. and my super nintendo..
She didn't seem crazy, so maybe it's a learned thing later on.. when they join a gang.