I visited the Oxford Horspath store today. I was searching for an item so I had to ask a member of staff. I have a stammer so find these situations difficult so will often add in ",umms " . The member of staff I asked was called Cerys and she said, "We don't sell umms", then turned to laugh at me with her male colleague. Unnecessary rudeness and mocking of my speech took me back to my school days. I cannot overemphasize how behaviour like Cerys's has on people like me. I would like to feel that the store manager will speak to her, reprimand her and then an apology be sent to me I certainly will not return to the store.