(Dean is slowly losing his memories, forgets what things are called… Right now he tries to show Sam he knows what the things around him are…)

Dean Winchester: This is a gun. This is a coat. (poins to a lamp) This is a… a… a… light stick.

Sam Winchester: A light st– All right. We’re gonna get you some help.

Dean Winchester: Look, we could figure this out, okay? Don’t go callin’ Mom or Cas with this.

Sam Winchester: Fine, but until you get better…

(Sam puts post-it note on the lamp with the word “Lamp”)

Dean Winchester: Lamp. Right. So close.

From Supernatural – Season 12 Episode 11: ‘Regarding Dean’ (12×11) | TV series produced by The CW