If the socially awkward person has one natural predator, it’s doors. (By dint of being socially awkward people, of course, we have many more than one predator. If the entire world weren’t actively trying to murder or otherwise humiliate us, we wouldn’t be socially awkward.)
The real problem with doors is that there are just so many of them. We literally cannot leave the house without facing one or two. What’s that on that bus? It’s a door! What’s this outside your office? Another door! And here, welcoming you home each evening like the cruel, snapping jaw of some enormous, horrible beast? It’s your front door.
Yes, they’re a tricky species, doors — waiting to lock you in or out of rooms, maim your extremities and your loved ones, and open onto still more awkward situations.