it.
Really I think he's picked up day trading as a hobby to cope with the divorce he's going through. I'd trust him with my money/property, but wouldn't trust him to invest it. He's too green and IMO optimistic about markets.
I have toyed with the idea of doing low money, low risk trading (of my own money) on the side. Something that wouldn't be consuming (time or energy wise), but might give some marginal return.