In my 6th grade class's activity period, we played scrabble for the last 30 minutes of class every day, in teams of two. The teacher had some quality plastic boards, though, which had a grid to hold in the tiles, like a full size version of travel Scrabble boards. It made it much easier to put the game away and continue it later. We even had a copy of the official Scrabble Dictionary.
I still remember my best victory in Scrabble. It was a close game, the bag was empty, and all we had left were C, F, and K, along with maybe 2 other tiles. So me and my teammate are scratching our heads for a bit, when I notice an open U. I whisper to my teammate that I see an opening, and he's not so sure we should do it at first, but we went for it

, landing FUCK with a triple word score

.
The two girls on the opposing team, of course, tells us we can't write that, and one of the girls raises her hand to tell the teacher. I wasn't worried, though, because I happened to know the word was, in fact, in the official dictionary. (Several classmates I had checked it previously, along with every other dirty word we could think of). Anyway, the teacher comes over, and after seeing the word on the board, she tells us we should put down a different word. I defended our position arguing that we could not see any other words (I think all we had left were consonants), especially for triple word score, and after looking at our letters to try to help she sees we're right. She then said she normally wouldn't allow it, but my partner and I were mature enough to use the word

.
One or two turns later it was over, and the girls weren't able to recover from the triple FUCK.
P.S. I did a little research to make sure I had the facts right, but after searching the online version of the Official Scrabble Player's Dictionary, the word "fuck" didn't turn up any results

. I knew there must be some explanation, though, so I sought out the answer to preserve the credibility of my Scrabble story. I was surprised to find out that the current edition of the Official Scrabble Player's Dictionary is censored

, but the first two editions were not

.
Also, Hasbro still sells a School Scrabble kit like the one my teacher had, which includes six deluxe boards, an official dictionary, and a few other things. It's a shame they don't sell those deluxe boards on their own.