There is nothing more anti-fun than.... (GO)
Getting camped by a shaco.
Getting camped by a shaco.
a prostate exam during a root canal
A toxic player harassing you with pings.
Having to Lane against a non-braindead Zed.
playing vs jayce or renekton as a melee bruiser
Playing against a

Ranged champions
Pulling off perfect plays against opponents that are fumbling about, yet still losing fights because they're so ahead of you in stats that you can't really do much against them.
ADCs literally two shotting me because they can right click on me.
When you are about to kill someone and then its like
"NAAAAAAAAH HE'S FINEEEEEEEEE"
Or when
Is on your team and you are about to die and he doesn't ult you
right now i wouldnt even give a fuck if he camped me. H edoes no dmg LOL.
first time
in my ranked games

When people Blame me for no gdamn reason I'm sorry you went 0-5 in 10 mins not my fault you're terrible
Watching a bruiser top Fizz one shot you under two nexus turrets and still being above 75% HP after you used all your cooldowns too

losing the game because someone else is doing badly
Getting right clicked to death by 
Having
press R on you
Playing an ADC against Teemo.
Master Yi getting fed.
Having a tank oneshot you (Doesnt happen too often now.)
Having your main get banned a lot
(This one is just me being dumb) Walking into enemies as you look at another part of the map
Blitz being able to steal yo girl 24/7 (Rip your Jinx ADC 2017)
T O X I C P L A Y E R S
Running out of memes

Full AD teams, which armor has no meaningful affect against.