League Needs an Option to Turn Off Friendly Fire in the Chat

They could have it in the options menu so some people could keep it on, but I just got out of a ranked game wherein shots were fired at teammates which instigated a full flame war. I prefer my chats in-game to be civil and informative, but this chat was full of violent language between my two teammates. I'm not a server technician by trade, but I know in a lot of shooter games you can turn off/on friendly fire server side, so Riot should just turn off friendly fire on the chat server.

Teammates are attacking each other in chat all the time, especially in ranked. It would be nice if we could put a stop to that so they could focus on attacking the enemies.