Mine was also the event which made me want to actually get the game, while playing a trial. Started in Galaxy, ran out of missions to do there. Next contact I was introduced to was in Kings Row, so since I didn't yet know about the trains off I went to the tunnel at the south end of the zone through to Kings Row. The north end of Kings Row, as we all know, is full of level 9-10 Skulls. I was, I think, level 5. But it wasn't the Skulls that got me, them I managed to go around. And in the process of going around them I ran face-first into a Clockwork Paladin.
I woke up in the hospital a moment later wondering what happened. And then I got invited to a team to kill that same Paladin, which was my first introduction to the amazing and awesome concept that is sidekicking, and to the amazing and awesome group of people that is the CoH community.