One, as ALS)Cerulean, where it was a simple "Mon'Star is in the system, all civilians evacuate" from the LSF.
The other, as my at-the-time Lane Hacker, Blackmoon (now Alicia.Nall), with one of the LR players involved as well. I picked up the Necrosis on the edge of my scan range and immediately turned in the other direction, most of the encounter was talking and me looking for the Rogue to see if he was ok.
Yeah, it's a simple character, and I wouldn't want more running around - one genocidal maniac when well-done can scare the hell out of you, but a dozen poorly-played ones would ruin the server.