Ask a question and they scream at you!

I'm a loyal McDonalds customer and I would rather go there than any other fast food place in town...until this morning.This morning at 06:17am, I went to McDonald's in Lephalale to get breakfast. The menus were still on the normal slides (burger and chips etc not the breakfast menu). When I stopped at the intercom the lady asked me what do I want to order and I asked her if I can order the a breakfast (I was unsure because of the menus) and she said yes. Because I couldn't see what selection of breakfast were available I asked her what do they have. She then started giving me the options (but I could hear that she was irritated with me) Sausage Mc****in, Egg Mc****in and then The Big Breakfast. I then asked her what is the big breakfast, because again I was unsure because I couldn't see what was included in the breakfast. When she shouted at me: \IT'S A BREAKFAST M'AM". I couldn't believe that she screamed at me for asking a question its not my fault they didn't change the menus. So I told her to leave it and I drove to KFC. They also had the normal menu but when I asked the lady taking the orders about the breakfasts"