I was in 5th grade when my friends started playing it in school. I saw it and ignored it because it had bad graphics. It turns out he was playing it on the school PC, and I put it onto my flash drive. I played the cracked version of minecraft for half a year and I didn't even know it was cracked. 1 week later it was banned in school. I've had it since November 2011, but only the full (non-cracked) version since June 2012.