A friend/coworker of mine and his wife hosted a weekly boardgame night that I attended. Most of the other guests were kinda flaky, and this one particular day, I was the only one who showed up. So it was just me, my friend, and his wife.
Someone suggested Dixit, which I had never played before, but it sounded fun and I was down to play. So we broke it out, shuffled, and started the game.
Now, if you don't know how Dixit works, it's basically a deck of cards with pictures on them. One of a toy abacus. Another of a child pointing a toy sword at a dragon. Another of a winding staircase with a snail at the bottom. Etc.
In one version of the game similar to Apples to Apples or Scategories, everyone gets a hand of cards which they keep hidden. The dealer announces a clue and everyone (including the dealer) contributes a card from their hands face-down to the center of the table and the dealer shuffles them together and reveals them all at once without revealing whose card is whose. Then players vote which one they think matches the clue. You get points as a player if others vote for your card or if you vote for the one the dealer picked. As a dealer, you get points if close to 50% of the players vote for yours.
I was the dealer this round. One of the cards in my hand was of a ship's anchor. That's when it came to me.
See, the friend/coworker and I both worked in web software development. His wife didn't. And I came up with the perfect play. I gave the clue "hyperlink." Hyperlinks on web pages are created using the HTML <a> tag. The "a" stands for "anchor." And any web developer would know that.
When the vote came in, I got one vote for my card from my friend and his wife failed to select the correct card and so didn't get any points. It was a slam dunk move. But I felt a little bad for excluding my friend's wife from an inside-knowledge thing.
The next round, my friend was the dealer and he picked a rule/card that was an inside-knowledge thing between the two of them. (A line from a poem they both knew well, the next line of which related to the picture of the card.) So I was glad of that.
Two things come to mind (apart from just being annoyingly defensive in Scrabble).
In high school, our friend group would play Risk. We had one friend who was the youngest of the type of family that probably played Risk for fun, and probably discussed strategies afterward. He was clearly better than any of us, but he was never better than all of us. So there was an unspoken rule that everybody just ganged up on Brian until he was crushed, then with the tall poppy gone, the rest of us weeds would figure out who would win that night. For some reason he stopped wanting to play. Some people, amiright?
Then, off and on in my 30s, I played indoor soccer. I was awful. I came to the game late in life, and anyway was WAY past my already-low peak of being a useful player in pickup touch football or Ultimate Frisbee. My most useful contribution was showing up to make sure we didn't forfeit.
However, all the guys playing O30 rec-league indoor soccer had some hole in their game, so if I could figure them out I could make myself useful until I got too tired (at which point they simply ran around me, LOL). Mostly it was just simple stuff like always pushing attacking players to the corner on the idea that they would take a low-percentage shot out of selfishness (or that none of their teammates would make a trailing run), or else I'd press quickly on the idea that they would eventually make bad passes, and they often did. However, one I was pretty proud of. I noticed a pretty good player (for our level) liked to keep an eye on the build-up from his keeper and defenders and trap the ball with his chest to turn and dribble. I saw one of his teammates launch one of these long balls, and I saw him start backpedaling towards me so I just... stopped.
I was not moving at all, and this skinny little fucker had a pretty good head of steam for somebody moving backwards. He plowed right into me and crumpled before bouncing up frothing mad. He only got angrier when the ref called him for the foul. I smiled a fat little smile, and then got off the field cuz I was already getting tired.
I had a few others where I got away with shit because the refs could see I was awful as easily as anyone else, so they assumed I couldn't have intentionally directed the ball with the hand I was holding against my torso, or that I must not have been able to stop before running into some dude, but the backwards jackass (he really was unpleasant) play was uniquely satisfying.