I was at the valero store on guadalupe and ellsworth #1659 and overheard as did several others this employee [krista] telling another employee that her assistant manager was a thief and lazy . I go to this store because of the friendly faces and excellent customer service, i won't return and will tell others to do same if this girl remains an employee there, this was not only rude but very unprofessional at best. we go to this store to shop not listen to gossip from a rude clerk, who should be ashamed of her behavior.