This might be an old one but I couldn't recall if someone posted it once.

A Mexican, an Arab, and a redneck girl are in the same bar.
When the Mexican finishes his beer, he throws his glass in the
air, pulls out his pistol, and shoots the glass to pieces. He says,
'In Mexico, our glasses are so cheap we don't need to drink with
the same one twice.'
The Arab, obviously impressed by this, drinks his beer, throws it
into the air, pulls out his AK-47, and shoots the glass to pieces. He
says, 'In the Arab World, we have so much sand to make glasses that we
don't need to drink with the same one twice either.'
The redneck girl, cool as a cucumber, picks up her beer, downs it
in one gulp, throws the glass into the air, whips out her 45, and
shoots the Mexican and the Arab. Catching her glass, setting it on the
bar, and calling for a refill, she says,
'In America we have so many illegal Mexicans and Arabs that we
don't have to drink with the same ones twice.'