He's wearing a t-shirt with bright lettering, “Mexican's have THREE problems.”
Just a few moments later the Mexicans surround him and say, “Hey, you know what you're wearing is insulting?”
The Texan responds, “This is your first problem: You're so easily offended.”
The Mexican visibly bristles, “Okay, maybe we should settle this outside.”
The Texan, “That's your second problem: You always want to solve your problems with violence.”
The Mexicans drag the man outside and pull their knives.
The Texan, “And here's your third problem. You always bring knives to gun fights.”