We were on the safari. We had left the loading dock and were about to enter the savannah when the brakes stalled on our vehicle, we rolled down a small hill, and crashed into the vehicle behind us. After making sure everyone was ok, CMs came out and somehow maneuvered our vehicle to another loading dock which was off to the side. We all had to get off. As we were standing on the platform, a kid who was in our vehicle vomited all over herself and the floor. After waiting for 30 minutes for them to get our disabled vehicle out of the way, they finally got us another one and off we went. Funny thing was, our driver was extremely apologetic, but the management who came to help never apologized. We didn't get fast passes or anything. When we got off the ride, we (the vehicle riders) were told to go to guest relations (if we would like) to issue a complaint. We had already lost so much time on the ride that we never bothered to go. At least the vomit missed us and no one was hurt.