One way of watering down the effects of violence is to approach it in a more lighthearted way. I don't mean to say that you laugh when somebody has their arm sawn off, but you can diffuse fear with humour.
As for poker, I've stayed away from that, even though when I was in Vegas for Ocean's Eleven, I would get accosted by these guys begging me to play. They just want to take my money. They see me, think 'actor' and see some easy money.
I turned down a scholarship to Yale. The problem with college is that there's a tendency to mistake preparation for productivity. You can prepare all you want, but if you never roll the dice you'll never be successful.