I am alerts the community of this player - who plays a Gragas as jungle - if you have him on your team, I suggest you surrender at 15, because this player will not help the team at all. The player remains in the jungle through out most of the game, the only time he does not is when the team has lost their lanes and has to defend their base - even then the player doesn't help much.
I am doing this so that other players are made aware of what happens when Trolling players play
Early game I requested a gank form the player reply
"I stay in jungle"
which the player did
If you have this player in your team it is up to you whether you play , I would not, Riot will not ban this player so I am alerting the community.
Such players should have a fix ban on their account so they don't play ranked at least