gmon,
you're wrong when you say sharpies smile at the end of the day. You mean at the end of the year, not day. There's no rule that says that a sharpie cannot have 6 straight days of going 1-10. A sharpie can have 13 straight weeks of losing 100 dimes, then they will have 3 straight weeks winning back the 700 dimes they lost in 3 weeks, plus interest. It's a sick business. Whethere you're a sharpie or not, you will have a lot of sleepless nights. But at the end, the money always ends up in the sharpies hands, as long as they don't chase and stay within their means.