Customer: “I need a matte eye-shadow because I’m allergic to shiny.”
 
Me: “Do you know what ingredient you’re allergic to in shiny eyeshadow?”
 
Customer: “Shiny! You know, shiny! I’m very sensitive!”
 
Me: “Well, our matte eye-shadows are here.”
 
(I pull aside the testers for the few matte products we have.)
 
Customer: “Can I try this one?”
 
Me: “Sure!”
 
(I go to get a disposable brush. When I turn around, the customer has her eyes closed and is holding the tester millimeters from her eye. She opens her eyes to see me staring at her holding out a brush.)
 
Customer: “I’m not allergic. I can tell using muscle testing. I’m very sensitive! This is a good one! What other colors do you have?”
 
(She spent the next 20 minutes holding various products ‘testing them’ and announcing everything she was allergic to.)