Let me tell you a story about me and 4 pre-mades.
Champion select..
Mr. Varus insta flamed for the adc spot, fine with me.. I will pick my Blitzcrank a.k.a. Madlife II.
All goes well, we steal blue and everyone is happy, untill Varus and I hit lvl 4.
That moment when Varus started to flame and rage at me for failing, meanwhile I make the lane opponents flash from my pulls.
So later on we hit lvl 11, Varus flames in Hebrew and RQ's cause I helped him save our top turret and I took my first kill *woohoo big deal*.
There we are with 4 players versus 5 of them, we somehow manage to make it all the way to their Nexus turrets *cough pulls*.
Varus comes back after most of us hit lvl 16 and 17, he flames some more and I requested a report from our team for his behaviour (not knowing they were pre-mades).
Jax insta bashed on me if I wanted 4 reports, on which I replied 4 useless reports vs 1 legit report, they all went quiet.
Then at a point we got aced and Katarina kind of raged and insta ragequitted and left the game, while it wasn't over.
So.. telling it in a short version:
Merciful "Madlife"
Katarina the Ender
Jax the Greed (this guy went so greedy after say 15 kills)
Varus the Hebrew flameon
SilentPlank
http://puu.sh/5GALn.jpg