[lenkite]

Actually, I forgot the passcode to my phone after being involved in an accident. It was utterly nerve wracking. Got blasted by so many people for not calling up and I was embarrassed to admit that I couldn't remember my passcode.

I had gotten used to putting in the passcode without even seeing the screen and completely lost this muscle memory at the time of the accident - likely due to high stress. I did not remember it later either - it was like my mind just rejected the memory and simply couldn't place out what were the exact digits.

Became far more understanding of my parents forgetting stuff after that incident.

Anyways, the point is that you can un-believably forget the phone passcode at a time of stress. Sure, some cool-as-cucumber humans will never forget anything, but the vast majority of people are not like that.