Oh, I've got a great story about I duel I once had online...
Okay, so I play a Gravekeeper deck. For anyone who doesn't play, they're an archetype that relies on this card:

to shut down the opponent's Graveyard (discard pile, where cards are often brought back from).
Now I can't remember exactly what occurred, but I do remember my opponent being on his last-ditch effort to come back and win the game after I had basically shut down his deck.
There's a very famous and useful card in Yugioh, and it's this one:

Now, with this card my opponent was going to return a few key monsters to his field and gain a significant advantage over me, but he failed to realize my Necrovalley card prevents this card from working.
He plays his card. It does nothing and is sent to the Graveyard.
Then this exchange occurs:
Sa1t E Boi: "u cheated."
Pakari: "Nope, Necrovalley's effect."
Sa1t E Boi: "nO u cheeted."
Pakari: "Please tell me how I cheated, I would love to know."
Then he says...
Sa1t E Boi: "i will finD where you live and Kill you."
My response:
Pakari: "I bet you will."
He goes on a few smaller tirades of pure salt and then leaves the server.
I am happy to report I am still alive and well with no salty children's card game players near me.