Non sequiturs, or, Evolutionary U-Turns Sometimes Make the Best Conversationalists

Overheard in the grocery store line-up:

Dude 1: "Yeah, so, it's when the guy just, whoop! Flicks his hockey stick between your legs. Like, lifts your sack and smacks you underneath. Man, that hurts."

Dude 2: "Yeah."

Dude 1: "Just, y'know, a quick hit. Fuck that hurts. You have no idea how much that hurts."

Dude 2: "Yeah I do."

Dude 1: "Oh, yeah, right. I guess you would know, huh?"

Dude 2 (reading newspaper headline): "'One Million Kenyans Face Starvation'. Poor Kenyans."

Dude 1: "Enh. Kenyans. Whatever. They're all reincarnated, over and over. The entire population of Kenya."

Dude 2 (sings, loudly and tunelessly): "The Keennnyaaaa...come to Keennnyyaaaa...we have llliiioooonss...."

Me (thinking): So...which aisle of the grocery store do they sell recreational narcotics? Because I somehow overlooked it.