There's a common adage that goes along with winning the lottery: “Never tell anyone you won the lottery.” Everyone in your life will come out of the woodwork asking for money, favors, assistance, the wisdom goes. I've never won the lottery but I'm sure there's some truth to this. You might be quickly overcome with obligations and guilt, feeling the need to indulge every want someone comes to you with. But there's a flip side to this-- if you're leading with a spirit of generosity, then you migh…