There's a auto parts place called "Lordco", it's a chain similar to NAPA. 
  
me : Do you have choke assembly for Q-jet carburetors? 
  
guy : Those cars don't have carburetors, they are all FI. 
  
me : What do you mean?   A Q-jet is a carburetor. 
  
guy : No, all the Infinity cars now are FI. 
  
me : What Infinity car?   A Q-jet is a carburetor, you know what a Q-jet is right? 
  
(after about one minute of talking) 
  
guy : Ohhhhhh....you said Q-something, I thought you meant Q45 Infinity. 
  
me : ..... 
  
The guy did provide good help though, I ended up buying a bunch of K&N air filter stuff. 
  
BTW, Lordco and NAPA are competitors here, which explains the similar amplitude of Dontknowwhattheyaretalkingaboutness.