Lack of Communication

I was in my local Food Lion grocery store this evening checking out when I guy approached my aisle and pulled out his phone. He proceeded to make a call when all of the sudden a guy who was paying for his beer, two people in front of me, answered his phone. The guy behind me says "what aisle are you in?" To which the guy two people in front of me steps back from the register, looks up at the number on the pole above him and says "5" back into the phone. The guy behind me says "oh" into his phone and hangs up. At no point during this entire 30 seconds of recorded human history did either one of these two mental giants look forward or backward at each other. I laughed at the guy behind me, because at the time I thought it was funny. He, unfortunately, looked at me like I was crazy. I honestly thought for a minute that I was on Candid Camera or at the very least Punk'd. What's really scary is that as I left the store I realized that these two individuals live near me, purchase beer near me and drive their respective vehicles near me. All the more reason why I stay in as much as possible at night as I continue to advance in age.