Also, backtracking 5 minutes to pick up the health pack at the start of the level instead of the one right in front of me

i'm like that in anything vaguely RPGish, videogame/board-top/cards/whatever.

if there is a such thing as a potion or anything like it i'll horde it and never use for fear of needing it in the future, well past the last boss or the credits..

same but brain

Me but with notebooks. Not unique or interesting ones. All of them. I'm always worried about ruining the notebook by putting the wrong stuff in it so I just have an ever increasing collection of blank notebooks that I thought were definitely the one I would finally use.