The team leader is there for a reason, to lead the team, that person can kick people out of the team, transfer leadership to someone else, and make it so people cannot join the team uninvited.

If all that fails you can manually quit the team yourself. I guess I don't understand the problem here.

You could join up do party mission rescue and he jump you to SA or TI and you can not do anything about is just wrong, or join do rescue and jump in before any one else join group , to get you bad time and reward and nothing you can do about it is just wrong everyone need be able to escape when they do that.... You can not quit one the mission has start have wait fro it over, that just wrong....

I've never touched the mini client so this may or may not necessarily apply to that, but...

If you're trapped in a battle that you don't want to be in, how about reloading the page, or crossing out your game window and re-joining?

reloading would get you out of the fights, but that doesn't mean there won't be any damage.

Now, for TI and wanted, there is no big deal. TI refresh will get you out of it w/o consuming chance and wanted... well.. there is nothing to lose either way to begin with.

But that's not true for some other fights.

For SA, the battle can go on and be won/or lost w/o you. And if it is a win, the chance will be consumed and you will get reward. The problem here is that 3-person team gives the most reward and also different difficulty have different reward. So if someone drags you into a easy SA with just 2 person w/o notice, there is a good chance that it will end up succeeding even if you leave battle and thus wasting the chance on much smaller amount of reward.

For Jinchuriki, even if you quit, the fight will continue on auto. And again, if the fight is won, whatever time that got will end up being your time. That said, like SA, if you lose, you don't count. And unlikely SA, if it's a 2-member team and you purposely do NOTHING, there is a good chance that you can get the attempt to fail and thus not wasting the chance. But if it was a 3-person team and the other two are noob but somewhat capable such that you can't fail it yet there is no way to get good time... well... RIP

This is why I do not join any team unless they tell me what it is about. And even then, I watch closely at what they do. Also, if they do something different than what they said, they are going onto the blacklist. I don't mind helping people with TI/SA/wanted etc when I'm done, but no funny business allowed.

easy fix is give everyone the escape option...not just the leader

Or you can be careful before you join a team.

Yea,i hate when invite me to help TI,and start SA insteadBut mistakes are made to learn from them,so if have attempts dont accept any team invitation,if not knowing the guy who invite you.Or if you know him,and he lied before.

Or only form teams yourself and never accept any random invitations if they didn't pm you before hand.