(I’m a little hyperactive and ditzy, but mostly it comes off as being friendly, or so I think, until this customer comes up to me.)

Customer: “Miss, exactly what kind of drugs are you on?”

Me: “None at all, I assure you.”

Customer: “Bulls***! You can’t just be that happy!”

Me: *completely bewildered* “I’m sorry?”

Customer: “That’s more like it!” *picks up his things and leaves*

Related:
Misery Demands Company