After playing Bejeweled for a 5-day week-end I entered a store and was confused because I saw raws of identical stuff that "should" have been disappearing, as it was always 3 or more. I took me a few seconds and I deleted the game as soon as I went back home.
The same thing actually happens with drawing programs. I'll catch myself looking at an object and thinking about which tool I'd use, what base colour to select.
This also happened to me with Mario Kart. I saw someone with a blue backpack at school and my blue shell instinct kicked in.
After playing Minecraft for 6 hours straight with no breaks whatsoever, I decided I should go downstairs before I decomposed. The dark hallway caught me off guard and I reached my hand up as if to press the pause button and adjust the brightness settings. The feeling of defeat and disappointment in myself that I felt at that moment was overpowering.
This also happened to me with Mario Kart. I saw someone with a blue backpack at school and my blue shell instinct kicked in.