I mined Bitcoin for a few months in the spring of 2011. I mined 100 Bitcoins in total. I sold 90 and kept 10 as souvenirs. Later, I was short of money, so I sold 6 Bitcoins for 4,000 RMB each. I owed half a year for my dormitory fees and would be expelled if I didn't pay the tuition. Later, my credit card was maxed out, so I sold 3 more Bitcoins for more than 10,000 RMB. Now I only have 1 left. 😭