Which type of players do you hate most?

I hate flamers and toxic players. More often than not they flame when they're not doing great themselves. And even if they are they don't seem to understand the concept that people have bad games sometimes - even though they 100% have some themselves. It's ridiculous, if you just chill and play and try and hold your time together and keep hopes up instead of contributing to flaming, you'll win more games. Trust me