How you deal with these people..?

I just go on training as if they're not there. They just leave.

I did this with my cygnus at mysterious path 3, mainly because it was extremely overpowered there, not having enough accuracy for stronger monsters. That and the fact that I leveled every 15-25 minutes and didn't really want to switch training spots before the 4 hours I trained there was up. They leave once I destroy the mob in their range within like 2 seconds, especially those people who just sit on the jeep =p Never really had anything close to this issue 1-120 other than those 4 hours.