The One

Me: Which steak would you like?  

Customer: (pointing) That one.  

Me: I can’t really see through the case. Which one are you talking about.  

Customer: (tapping the glass) That one!  

Me: The glass distorts the image on my side. Do you mean the front one? Or the one behind it? Or..?  

Customer: (tapping harder and faster on the glass) That one.