It all started when me and a friend(Ronny) started a minecraft server. We had our own town named Pallet town and we made our houses together as one "colony". Other friends joined but more specifically a guy named "7". 
7 is in his own colony and is constantly mining the ground to have a massive underground base. Diamonds are his fuel source(relevant for later). Over time Ronny decided to disband from Pallet Town but our houses were still very close and I was upset so there was tension. 
In comes friend "bomb56". He joined Pallet town with me and we built some more cool stuff. Tension had built in Pallet Town as Ronny wasn't very far from us and its possible that I was paranoid but as leader of the server I proposed a rule that you HAD to declare war verbally/over chat to make attacks on someone else, this might've been triggered by me logging on and seeing that my 3x3 redstone door was destroyed but this was 6 years ago so that could've been a creeper/dont remember.
The people of the server didnt like the rule but agreed. A couple days go by and I found that about 36 of my diamonds that I hid in a chest behind a painting(not the greatest hiding spot I know) were totally missing and since Ronny was the only person that was ever close to my house I became suspicious. I asked him if he took them and he declined but I didn't believe him. I asked him how many he had and he said something like 12. I went into the server files to check his ender chest and found that he had EXACTLY as many as I had PLUS however many he said he had, which would be 48 in this case and I took it as a sign of war, there was no way he didnt take the diamonds according to what I saw. 
I didn't tell Ronny that I found this information. Me and bomb56 planned to destroy his castle and started farming gunpowder for an entire day. Later that night we completely destroyed his castle while he was in it, killed him multiple times, and stole his stuff. It might've been the most enjoyable feeling ever( while knowing that Ronny took my diamonds).
Everyone on the server hated me for my actions not only because I broke the rule that you HAD to declare war before any actions but also because it turned out that Ronny was totally innocent and our friend "7" is the one who actually took my diamonds for his mining purposes.I was just a coincidence that amount of diamonds that Ronny had was as close as it was to how many I lost. I was ostracized from the group at school for a good 2 weeks and ruined Minecraft for everyone. 

6 years later we joke about it but now we wanna know what Reddit thinks.