Some junglers always waste opportunities to clear camps.
First of all, this a composed rant, So I ain't gonna lash out. But When a jungler is needed in lane to gank when the enemy has overextended or to counter gank, but they don't help out and gank. It gets really irritating because they could have turned the tide against the enemy and get the team a kill not the enemy. I've nearly always dropped what I was killing to save my team because they needed help even if I might die because they were in trouble and I want to help them. However Junglers have to learn that their camps ain't going away unless the enemy jungler is snooping around there and When teamfights are about to happen they should be there instead of greeding for camp clears.
I am not saying they should babysit a lane, but learn to stop and intervene if they have the chance to do so.