Bad attitude - Rude server

I went into Woolworth's with my wife, daughter and son-in-law, yesterday around 11:00. I went past the area next to the bakery section and saw that they had snacks for customers to sample. I tried one, then fetched my son-in-law so he, too, could have one. When I got there, I took a second one, and was immediately taken to task by one of the staff, who was extremely rude to me in front of everyone at that counter. She said quite loudly: \ I saw you