I remember spawning, thinking everything looked so cheesy, going AFK, and coming back to a red screen saying Respawn or Exit to Title...
When I respawned I was standing in a crater, so in hindsight I imagine my first death must have been to a creeper. I may never know.
But I like to think MC was paying me back for my lack of initial respect.
I clicked the Respawn, and built a house out of sand. Which was promptly blown up the next night by the army of creepers. So I rebuilt out of stone. And this gave me a fighting chance. Instead of blowing out entire walls they only made holes through which I could bat at them with my blocks of sand/dirt/stone. Eventually the day came, and I found myself with a few random blocks of stone, lots of craters, and lots of dead creepers. Since that day hardly 24hours have passed that I wasnt doing /something/ in minecraft.