If applicable, have you ever done anything to a rude customer's order or service?
everyone always jokingly says, "please don't spit in my food." it mainly just pisses off the workers that we are viewed to go that low, but I am trying to see how many people would ACTUALLY serve something disgusting.
I work at a coffee shop and I have heard stories of stores 'accidentally' giving decaf shots instead of regular.
I personally have not, the only thing I have done is put the wrong milk. And even that isn't intentional, I may put skim milk in a 2% drink or vice versa.
Most of the time I will fix it, but if the person is staring over my bar, impatiently waiting for their drink, I give it to them. When the milk is steamed, you will not taste a difference. Though, I would never do that with soy or any half and half because they are paying extra for that.