The plasma fire honestly doesn't ring any bells. I lived with a couple of roommates until recently, and I was recommended to play the game by them. Perhaps the incident involved one of them.
Wasn't quite what I was looking for, I suppose I'll rephrase. No one has played on our server from your computer, yes? If you've lived with roommates, did you let them play spessmens on your PC, or generally do stuff on your PC?
One more request. Are you able to try connecting again (two attempts would be fine) and seeing if it changes anything? It'd help me check one more thing.
Ah, my apologies. Yes, we did share the computer. I took it with me when I moved, because I paid for it.
And, certainly, I'll do that now.