If I won the lottery, I would tell my wife to meet me at the attorney's office. Absolute secrecy would be maintained. I'm not even sure I would tell my kids, let alone anyone else.
If I had won $315 million, I would set up charitable trusts and give away almost all of the winnings. I would make it next to impossible to link me to the charitable giving. My lifestyle would change very little if at all.
If I won, I’d take about five million to play with, the house the cars, the trips, help the relavtives then put the rest away and live off the interest. I would still have an extremely comfortable living, but not enough to get real stupid real fast.