You know, “hatch”. But it’s funnier saying door. Could a ship just dock with it, equalise pressure, and open the hatch? Or is there some sort of security? I tend to think ‘no’ because of a macabre situation where the crew are dead and the station is being recovered. But it’s amusing to think in space they don’t need to keep the doors locked.
For a human. By having doors open towards the side with the higher pressure it makes actually moving the door exceptionally difficult even if the handle is actuated to allow it to open. I’m also pretty sure that most airplanes have mechanical latches that prevent the handle from moving to the open position as well.
However, everything is possible with enough and properly applied forces. You may not end up with the door in the same shape you started with though.