It's not okay to cause people undo stress.
Marnie is shopping for fancy new clothes at a classy boutique.
Marnie wants to look really fabulous at a friends wedding.
Marnie asks the staff for assistance and also follows their instruction for putting away clothes she doesn't want.
Marnie tries on multiple outfits and tosses them all over the floor before deciding what to buy.
The staff appreciate Marnie as a customer and offer her a discount.
The staff have to spend hours cleaning up after Marnie and lose sales.