Double Doors !!!
Today i had a lecture in the Murihead Tower, the main entrance has double doors 'probably' so its easy for people to get in and out. You come through one door and out the other! But for some reason one door was locked so you get a crowd of 30 people waiting for each other on each site. Only if they'd opened the other door! Its not just this building at our university, Mech. Eng. main entrance also has large double doors but they only like opening one and you get then at 50minutes to every hour you get the same waiting around situation.