Listen to me OP, when i do my roulette with 3 new guys, i'm full allagan armor. I talk to them, i do myself the good ambiance, and i ask them did you know this and this ? I try to give them some tips and their dps cycle too, i ask them if i do big pack or not, if they want to try or not, i ask them what to do, and when they do good job i tell them, everyone is happy till the end and i often get the 3 honor to the end. I feel like a good leader who don't push them so fast, but they learn with fun. I prefer waste 5 minut in explanation, than do a dungeon with no word and speed run. I often hear some of my friend fail their dungeon because of new people, but i'm sure and i tell them, they don't help too, yes the new will be less powerfull than a awesome full allagan boy, but if you learn them what to do, all will be fine, i have already see full ilvl 90 fail, because the skill count, if you evade nothing, you will die. Well for finish i will say i have never encounter any problem in a dungeon, if you are cool, people will be cool back. If you are rude and tell them "hey you suck noob, i have done a pack with 35 monster and i am dead bla bla" sure you will be kicked or they will be demotivate and play less good. If they will motivate by you, they will be happy.