1) Every time I go through a particular door I try to push it when it's a pull door.

2) I notice this and ensconce in my brain that it's the opposite of what I think it is.

3) After a while, my brain actually starts to remember it the correct way around to start with.

4) But my brain doesn't then drop the 'opposite' rule so now I remember it the correct way around, then invert it, thus recreating step 1.

I don't claim this says anything about rust, but I think it does say something about human brains (or at least mine and apparently yours).

My sympathies.