Here is what I would have done:
Stranger: "Do you wanna buy a magazine?"
Me: *looks at the guy and determines that he looks "shady/ghetto* "Um...no"
Stranger: "Cmon man, juss buy 1!"
Me: *getting a little ticked off* "Um..no"
Stranger: *getting a little aggressive gesturing as if he wants to rush
me* "You sure? Just buy one man!"
Me: *a small smile appears on my face as I grip a Kimber Pro Series behind my back* "OKAY! How much are they?"
Stranger: "Only 9 dollars each!"
Me: "Well I don't have my nine on me...Got change for a FORTY FIVE?!" *as I click off the saftey hard enough for him to hear it through the small opening in the doorway*
Stranger: "Hey man, theres no such thing as a fort...oh." *eyes open wide and sweat begins trickling down his cheek*
I'm so bored.