A Tumblr-less friend posted this theory her husband had. I slammed the headcanon button so hard I should have bought it dinner first.
Thor: Banner, I desire to act like a normal human for a time. How should I accomplish this?
Bruce: Well, um, normal people don’t have your speech pattern, for one. They, um, have jobs and hobbies…
Thor: Hobbies?
Bruce: You know, photography, video games, puzzles…
Thor: And how does one acquire a ‘job’?
Bruce: Most people use the inter… you should probably look in the classifieds in a newspaper. Also, try shaving the beard and cutting your hair- you’re a bit recognizable.
Thor: *sees Superman/Clark Kent costume* A disguise? Like that man?
Bruce: Sure, yeah, glasses work.-later, above a Chinese restaurant-
Thor: Hello? I saw your ad. I’m Kevin.
Wait, Thor can’t be Kevin. Thor loves coffee.
Thor loves coffee. His human persona “Kevin” hates it. So he keeps taking a sip without thinking about it and then going “oh shit I’m supposed to hate coffee” and spitting it back out again.
This is a genius idea. Heartily seconded.