Ye, I've gotten that a few times before in LoL, not a lot of times, but a few, when it's not been my fault.
One time, in LoL, I was playing Solo Top as Volibear cause we had a jungle Xin Zhao.
(For those who do not play LoL or any DOTA related game, this means the Xin Zhao was in the forest and not directly in any lane, but killing neutral mobs and getting buffs to then jump out of the forest to help other lanes who need it.)
Anyways, the other team had the same champion, Xin Zhao, as a jungler, and he kept trash talking the other Xin Zhao player and eventually everyone on my team: "Lol, you are bad, next time you should try out my build instead, might make you good at the game." And such.
In the end though, we started killing him when he tried to gank us and we won the game, and then he started talking shit about his team calling them failures and that they should go and un-install the game. He was not the best player on their team, he kept trash talking, while he was the worst.
As a jungler he had the most deaths, least kills and least assists, and as the other team confirmed in after game chat, he kept hogging the buffs and didn't give any of the buffs to the other people on his team to help them out.
Though for me, this was a rare case. Most games I never meet trash talkers, sure I've met more then this guy, but he was extreme.
Ignore them, and move on.
