I was skateboarding on a college campus here in Guangzhou last year when I guy on an ebike raced up beside me saying, "You can't do that here!" and then proceeded to pull in front of me and and brake or basically run me off the road. After about 100 yards of this and me just dodging him and pressing on I finally stopped and asked him, "can I drive a car, bike, or motorcycle on the campus?". To which he replied "keyi". I then asked him if I could walk or run on campus, to which he replied, "keyi". "So I can drive a bike, motorbike or car on campus, and I can run and walk on campus, but I can't ride this?" He just looked at me in befuddled amazement and drove away.