I'm going to be somewhat rude to the receptionist at the barbershop because she wouldn't change my appointment time.
Is it really that big of a deal?
Yes, she wouldn't give me the day and time I wanted. She's just so stupid.
It's wrong to be mean at customer service workers. You should practice having more patience.
She should just do her damn job and not waste my time.
They're running a business; you're not their only customer. Other people booked appoints; they're not going to change them to accomodate you. If it's that important, go to another barbershop and can accommodate you at the day and time you want.