On friday, may 12, at about 4:50 AM EST I believe, at a normally peacefull time, the market went crazy. I was watching the eur-usd. It went up 50 then down 50 probably 10 times within 30 seconds. I was so busy hyperventilating I lost track exactly. Did anyone else see it, or was I hallucinating? I am curious how often this happens and usually when and why? I've seen volatility at 10 am or 8:30 EST but nothing this crazy. Whats the worst that can happen? Whats the most anyone has seen the market move like this? Up and down how many times? Esp for eur-usd but other pairs too: Can it move 300,400,500 pips in seconds? What is the biggest daily move? How often does it bounce up and down like crazy like that?