Bad stinking attitude service

Had a bad cashier assistance. The last was very rude and cheeky with a stinking attitude. Well what happened is my friend left a disprin by his cashier point so the lady asked me very rudely that how am I going to get out of the shop because my receipt had no disprin. I then responded that how did my friend get out with things that are printed on his receipt but he doesn't have them on hand. Then she said I smoked wanting to make fun , even his manager didnt serve justice. I hada bad bad bad service.