The last incident I had a problem with at Disneyland was a couple years ago, near Christmas time, we wanted a light up balloon in the evening (the princess one) and we made a special trip back to Disneyland on the ART bus just to get the balloon. I waited because the balloon seller was in the back filling up balloons for 40 minutes until the balloon seller came up. This guy with a Mad Hatter hat on, a guest, came and bought every single balloon that the balloon seller had. So, I followed him, to see where he was going with them, and he was selling them in Disneyland for $15 a piece. I went and told City Hall, and expressed my disgust. I told them I've been a Disney fanatic since I was 6 months old and we've never felt the need to complain before. Disneyland deemed it "okay" for this guy to do this, and they even had a cast member follow him around so no one got hurt. At the end of the day on the third batch of balloons (he bought the entire second batch), I finally got the princess light up balloon.