Unacceptable treatment

Yesterday at around 18:30 in the evening I was at Sanridge Pick 'n Pay looking for camping stuff I didn't ask anyone. I took the bread and was walking looking and this security guy was following me but I just ignored him and I decided to leave the bread while on my way to the door the same guy come running to me without greeting me nor asking me he just said open your bag I want to search it I did that without arguments but I asked him why is he doing that. The way he approached made me very angry and hurt. He treated me like a ***** even people who are working with him were surprise on what he did to me. In front of everyone being treated like a *****.