The Cuban pulls out a box of cigars, takes one and throws the rest in the water. He puffs twice and throws it in the water.
He says, "We have so many cigars in cuba, we can spare a few."

The Japanese guy pulls some computer chips out of his pocket, throws them in the water and says,
"We produce so many of these, we can spare a few."

The American, who doesn't want to be outdone looks in his pockets, but all he has is a few dollars (which will come in handy at the bar later). All of a sudden he has a realization! ...He throws the Mexican overboard!