No more small talk

Anybody who really knows me, knows that I am very discreet. I don't like to draw attention to myself in public but rather be the observer. Well today, while browsing the drug store for a fan for my house because it's 100 degrees, I notice that the selection is slim and not only that, the fans are ridicilously priced.  I glance at the lady examining the selection too and mention out loud "it looks like they raised the prices for us because it's so hot"  The woman looks at me and says loudly "What?" (in hind sight I realized that she must have been hard of hearing) I repeat my statement louder and she then replies 5 decibles louder than me. "Yeah, and they don't have any wattage information so you can't compare the different fans..." I was acutely aware that everyone in the store could probably hear this woman. I was no longer interested in small talk with this loud person but she kept going. I responded out of politeness and she kept talking loudly about the lack of specifications on the box. 

I expected to say something, and for her to respond and that would be the end of it. Not a long conversation and not at full volume. Oh well. So much for small talk.