Panda Express review: Inconsistent serving sizes

Tonight I went to my local Panda Express in Redmond, Oregon. I have to tell you I feel cheated. I was standing in line to be served. The person in front of me ordered a 2 side plate. He got two large spoon fulls of each side. When it was my turn I was given one small spoon full of each side. The 2 side plate he got was 1/2 again as large as my 3 side plate. My question to you is how much should each of us have received? Was I cheated or was the person in front of me given greater portions than they should have been given? While I really enjoy your food, I do not enjoy feeling cheated when I leave, and if I don't feel good with your response I suppose I'll find another place to take my business.