Jamba review: Drinking my smoothies

I get whey in my smoothie, which makes the smoothie be put into a medium cup when you ask for a small. One of the workers was in the back drinking the extra of the smoothie I paid for. Then I heard her in school today talking about how much she hates her customers, thinks they are rude. This was all in front of people who go to Jamba during her shift after school.

I do not know her name but she has brown hair-died partly red with multiple piercings.