People who stand in front of the MTR doors
Your attempts to be the first on the train (congrats on that by the way) simply prevents people from exiting the carriage. To those annoying folks? Chill. Seriously. Being first on the train won’t make the MTR move any faster, so have the decency to let people out first before shoving in. Just stand off to the side and leave it a few seconds before trying to cram on. It’s really not that hard.