"I force myself to be cordial with the attendant since it is not their fault" Exactly, it isn't that the situation isn't irritating it's that an honest person

"I force myself to be cordial with the attendant since it is not their fault" Exactly, it isn't that the situation isn't irritating it's that an honest person will initially be cordial about it. The ones that are trying to pull something go straight to overt anger because they, mistakenly, think employees are trained to give an "angry" customer what they want.