it's my life

There's this school down in South Texas where there are very few white kids, mostly all hispanic. (Mexican). The teacher is asking for the kids to identify famous quotes. She says, "Who said 'ask not what your country can do for you, ask what you can do for your country'?", and little Johnny raises his hand, but she calls on Maria, who answers, "John F Kennedy".
Then she asks who said, "I have a dream.....", and little Johnny raises his hands, both of them, and waves them around, but she calls on Juan, who says, "Martin Luther King".
Well, this continues with quotes from F.D.R., and Winston Churchill, right on down the list, towards the end, little Johnny, sitting in the back of the room is standing on his desk, jumping up and down, but she still doesn't call on him.
Finally the bell rings, and in the confusion and noise of the kids pushing out, a voice from the back of the room yells, "To hell with all those fuckin' Mexicans. The teacher hollers out, "WHO SAID THAT", and little Johnny says, "Davy Crockett, at the Alamo"