While working at a deli/bakery/coffee shop combo restaurant, I was working on a custy's order.
She had told me whipped cream on her mocha, and didn't mention what type of milk. So I defaulted and used 2%.
She took one swig of her coffee, and grimaced... and promptly threw it at me, getting me drenched in hot coffee, and demanded that I make her one on the house.
--Retail Drone 456