She probably hates her job meaning she doesn't enjoy doing her service job. She clearly doesn't want to be doing her job meaning her heart is elsewhere. She probably hates her life in general and wishes she could be doing something other than her Starbucks job. to be fair i'd much rather have a speech impediment and take an extra 3 seconds to talk than feel discontent with my life. You should pity her maybe try to empathize with her the next time you get coffee.