This happened to be at an Advanced Auto Parts, but it could easily have been an Autozone, O’Reilly, etc.
Me: *Goes into AAP to pick up some new wiper blades*
Clerk: “What kind of car did you say you needed blades for?”
Me: “’05 Saab 9-2x.”
Clerk: *stares blankly at list of car brands on computer screen* “Uhh...I’m not sure we carry those...”
Me: *points at “Saab” listed on screen*
Clerk: “Oh wow, looks like we do have them! I’ve never even heard of a Saab before!”
He then proceeded to tell me how ready he was to get off his shift, then go and grab some wiper blades which did not, in fact, fit my car.
Something like this happens virtually every time I got into an auto parts store.