Bad day traders follow rumors, fight the market, set no stop loss, use margin and set no stop loss (yikes), change their trading plan midstream. My one loss this week was from changing my trading plan midstream. I tightened a stop on a volatile stock and got taken out before it rebounded to a profit within 30 minutes. But I'm still a noob with just 3 months under my belt, though I am trading for a living. Check back with me in about 6 months...