When you scour Asian art museums for any mention of the game of Go.
9 Likes
Counting territory on your salami pizza toppings!
5 Likes
After a game with a friend, he unsuccessfully tries to convince you that “there is no such thing a Sente or Tenuki”, because “this is CHESS goddammit!”.
8 Likes
Tempo?
2 Likes
“Everything in excess; moderation is for monks!”
The road of excess leads to the palace of wisdom. - William Blake
4 Likes
… you almost pee your pants every time you visit Go memes!
9 Likes
When you start to “forget” boards and stones in nearby guesthouses or bars/tea houses. Well they could be more useful there at least.
Which may come with teaching the game to the owner, waitress and the cleaning woman.
6 Likes
When the only clever and enjoyable gift you want to offer at every Christmas/birthday/anniversary let it be the 50 years of wedding of your aunt or a new addition in the neighbors family has to be a go set.
10 Likes
…when your main reason to start new hobbies(poker, chess, running, etc)/try new activities is to improve yourself for studying go.
…when you find it difficult to take a hiatus (for the sake of improving upon return) because you’re not sure what you’ll do with your time if you aren’t playing go.
11 Likes
6 Likes
When you go to your games, in place to post in “You know you are a Go addict…”!
4 Likes
When you come back to reading/posting in the forum after playing moves for all of your games
4 Likes
… when you are typesetting an industry machine manual manual, and you’re opening a CAD file, and first thing you see there is this image of a “workpiece” …
You do see the grain, and the lines on top, do you?
I do. I cannot not see them. Must’ve cost a lot, eh?
17 Likes
When you’ve already checked the forum for new posts, but you come back to the forum anyway after playing moves for all of your games, because you know that - in the meantime you check it once more - there will be new moves for you. 
This sound more like “You’re OGS addicted when…” though. Or even better “You’re Fast Correspondence (group) addicted when…”. 
5 Likes
… when you come to this thread immediately after you find something to prove your addiction.
… when your little sister’s birthday cake has candies that resemble stones (wish I had a picture), and you do everything you can to make sure you don’t eat one of your greatest toys. 
7 Likes
You know you are addicted to go when you can look at a 13x13 position and immediately recognise that it is a 2 stone handicap game with chinese rules
6 Likes
When you begin to use go ranks to rate your other skills, such as “I’m a DDK typist.”
17 Likes
So you’ve been improving then, Conrad? 
4 Likes
Lol
4 Likes