/mute all
Report at end, here is an example of a player I just reported because they kept intentionally trolling.
"Kept running into lane taking xp and intentionally feeding/putting ahead the enemy along with kill stealing normally I don't report kill stealing but if I feel it's intentional I do."
http://leagueoflegends.wikia.com/wiki/Experience_(champion)
The player went Evelynn flat out refused to stop coming into lane and taking XP, tilted the lane at start, kept running around feeding the enemy like an idiot on top of the tilt, then proceeded to "Kill steal" normally being a team game I wouldn't report players for taking kills, but with the exception of an Evelynn player taking kills after doing the above, damn right I am pissed.
Unless there is a valid reason for a jungle to actually be doing something rather than just running into a player lane then sometimes its best not to do anything especially at the start if your lane is doing well because you can end up tilting the person in lane, then being the most worthless piece of **** in the game and then the lane is easily lost enemy gains more gold, and you just flat out ruined an entire game for the person playing +3 others.
Hopefully, if enough reports against said players get filed Riot will have some type of filter system that does something about it because it's just upsetting to deal with.