Trolling on event map

[Milan Lame Man]

There have been many suggestions in the past regarding the ability to kick people by other players.
It was always turned down with "you can leave the map if you don't like the people".

However if this event system is going to stay, something needs to be done about people who stay at entrance, preferably naked and barehanded, and wait for others to kill the boss.
This behaviour has spread a lot yesterday.

Please STS, try to come up with a way to punish these people.
One way would be ability to quit map, getting e.g. "Helena energy ball" on Helena's map instead of a generic energy ball, to prevent exploits or storing it for later.
It would show like normal energy in the upper box, except with a letter "H" or a "3" or some symbol.
When my last ball is a Helena ball, the next time I go to mission, I will get Helena.
By this procedure, only the last ball can be special.

PS: there is a possible exploit, if people find Ursoth, everyone quits and invites friends, and they quit and invite friends, uhh.
Maybe the Join button could be disabled while randoms could still join. Not sure if it's technically possible on this client.