Shooting cans

Gun Shop Owner: "Hi, How can I help you?"
Client: "I'm lookin' for a gun."
Owner:"What kind of gun are you lookin' for?"
Client: (pointing at the biggest handgun in the case): "That one looks about right."
Owner: (very surprised): " Why do you need a .44 magnum?"
Client: "It's for shootin' at cans."
Owner: (pointing at a small handgun) "Well, this is the perfect size for shooting at cans."
Client: (pointing again at the .44): "Nah, I need this one."
Owner: "OK, what kind of cans are you shooting at?"
Client: "Mexi-cans.......Puerto Ri-cans........Afri-cans!!"