Three construction workers joke

Three construction workers were eating lunch on construction beams some stories high. One was Mexican, another was Italian, and the last was American. Each was upset about the same lunch they always got: the Mexican-tacos, the Italian-spaghetti, and the American-sandwiches.

So, the Mexican said, "If I get tacos for lunch one more time, I will jump."
The Italian then said, "If I get spaghetti for lunch one more time, I'm gonna jump."
The American then said, "If I get a sandwich for lunch one more time, I'll jump."

The next day, the Mexican got tacos, the Italian got spaghetti, and the American got a sandwich, so all three jumped from the building. At their funerals, the three wives were seen attending:

The Mexican's wife sobbed, "If I had known he didn't want tacos for lunch I wouldn't have packed him any!"
The Italian's wife cried, "If I had known he didn't want spaghetti for lunch I wouldn't have made it for him!"

The American's wife said, "Don't look at me, he packed his own lunch!"