Back in 2012, traded 70 Bitcoins for around $15 (they were $10 at the time) thinking it was a smart move. Mining rig fucks up (couldn't be bother diagnosing it) and I can't generate anymore, leaving me stranded with 40 Bitcoins till this day. I wish I never traded those 70 coins and that my rig paying me 1.5 BTC a day didn't stop.