Chairs to hold doors open

[Frank_Stein]

Well I forgot to finish my thought in that post.

Conclusion: I'm not too fond of the idea of doors crushing things.

Agreed. There's just too many doors all over the place for that.

That said, I like the OP's idea. Sometimes as an AI someone needs more time to do what they need to do in a room. Rather than needing to open the door for them twice they can just prop it and if they forget to undo it you can just crush it closed.