Same here.  I don't do dice or any of that, but trading is a completely solitary activity for me.  I don't like playing cards, and I don't even like small talk with friends.  You have to use your head when doing any sort of gambling, and people are just distractions for me.  No drugs or alcohol, either.  The casinos like to load you up with booze so they can steal your money when you're not thinking.