Lady: "So my oil light is on, what does it mean?"
Clerk: "You need to add oil to your engine."
Lady: " So can I buy this oil and just pour it on my engine and it will go away?"
Clerk: "Yes you are probably a little low so just pour this oil into your engine and it should be good."
Lady: "Thanks I take it."
Later...
Clerk: "What is she... oh I have to get this on camera!"